Tag Archives: roller chains chains

China OEM Industrial Transmission 24ass-2 Conveyor Duplex Stainless Steel Roller Chains

Product Description

Chain No.

Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness

t/Tmax
mm

Transverse pitch

Pt
mm

Breaking load

Q
kN/lbf

Weight per meter
q kg/m
Lmax
mm
Lcmax
mm
*04CSS-2 6.350 3.30 3.18 2.31 14.50 15.-0-0. p. 211. Retrieved 17 May 2-0-0. p. 86. Retrieved 30 January 2015.
 Green 1996, pp. 2337-2361
 “ANSI G7 Standard Roller Chain – Tsubaki Europe”. Tsubaki Europe. Tsubakimoto Europe B.V. Retrieved 18 June 2.
External links
    Wikimedia Commons has media related to Roller chains.
The Complete Xihu (West Lake) Dis. to Chain
Categories: Chain drivesMechanical power transmissionMechanical power control

Why Choose Us
1.     Reliable Quality Assurance System
2.     Cutting-Edge Computer-Controlled CNC Machines
3.     Bespoke Solutions from Highly Experienced Specialists 
4.     Customization and OEM Available for Specific Application
5.     Extensive Inventory of Spare Parts and Accessories
6.     Well-Developed CHINAMFG Marketing Network 
7.     Efficient After-Sale Service System

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
Surface Treatment: Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

trencher chain

How do trencher chains perform in different soil types, such as rocky terrain or sandy soils?

Trencher chains’ performance can vary based on the soil type they encounter during trenching operations. Here’s how trencher chains typically perform in different soil types:

1. Rocky Terrain:

– In rocky terrain, trencher chains with carbide or hardened steel cutting teeth are preferred. These materials offer excellent wear resistance and toughness, enabling the chain to cut through rocks and other hard obstacles effectively.

– However, rocky soil conditions can still pose challenges, and trencher chains may experience increased wear due to the abrasive nature of rocks. Regular inspection and maintenance are crucial to ensure the chain remains in top condition.

2. Clayey Soil:

– Trencher chains usually perform well in clayey soil due to its relatively soft and cohesive nature. Standard trencher chains with regular cutting teeth can efficiently cut through clay, creating clean and precise trenches.

3. Sandy Soils:

– Sandy soils are generally easier to trench through, and standard trencher chains perform well in such conditions. The sand’s loose nature allows the chain to move smoothly and quickly, resulting in efficient trenching.

4. Loamy Soil:

– Loamy soil, which is a mixture of sand, silt, and clay, can offer moderate trenching challenges. Trencher chains with standard cutting teeth are typically suitable for loamy soil conditions.

5. Wet or Soft Soils:

– Wet or soft soils can be more challenging to trench through, as they may cause increased chain wear and the risk of chain clogging. Special attention to chain tension and soil conditions is essential to ensure smooth trenching.

– In such conditions, trencher chains with modified tooth configurations, such as cup-type teeth, can be beneficial, as they may provide better cutting and reduce clogging.

6. Compacted Soils:

– Compacted soils may require trencher chains with strong cutting teeth to penetrate the ground effectively. Carbide or hardened steel teeth can help maintain cutting performance in these conditions.

– Consider using trencher machines with higher horsepower for trenching in compacted soils to improve productivity.

Overall, trencher chains can be optimized for different soil types based on the cutting tooth material, tooth configuration, and machine power. Regular maintenance, proper chain tension, and selecting the right trencher chain for the specific soil conditions are vital to ensuring optimal trenching performance and extending the chain’s lifespan.

trencher chain

Can trencher chains be used in combination with trencher teeth for improved digging performance?

Yes, trencher chains can be used in combination with trencher teeth to enhance digging performance in specific trenching applications. The use of trencher teeth, also known as cutting teeth or blades, along with the trencher chain offers several benefits:

1. Versatility:

– Using trencher teeth in combination with the chain allows for greater versatility in trenching. The chain efficiently cuts through the initial layer of soil and creates a guide for the trench, while the trencher teeth refine the trench’s edges and bottom for a smoother finish.

2. Improved Cutting Efficiency:

– Trencher teeth are designed with specific cutting angles and shapes to optimize cutting efficiency in different soil types. Combining the chain and trencher teeth allows for more efficient and precise trenching in various soil conditions.

3. Better Trench Quality:

– The use of trencher teeth results in improved trench quality, with clean and well-defined edges and consistent trench depth. This is especially beneficial for trenching projects that require high precision and accuracy.

4. Enhanced Durability:

– By utilizing trencher teeth in combination with the trencher chain, the workload is distributed more evenly, reducing wear on individual components and increasing overall durability.

5. Reduced Chain Wear:

– Trencher teeth help minimize the workload on the chain by breaking up the soil ahead of the chain. This can result in reduced chain wear and a longer chain lifespan.

However, it’s essential to select trencher teeth that are compatible with the trencher chain and machine specifications. Improperly matched trencher teeth may cause uneven trenching or excessive strain on the chain and machine, leading to reduced performance and potential damage.

In summary, using trencher teeth in combination with trencher chains can improve digging performance, trench quality, and overall efficiency in various trenching applications. It is recommended to consult the trencher manufacturer or supplier to ensure the correct combination of trencher teeth and chain for your specific trenching needs.

trencher chain

What are the key factors to consider when selecting the right trencher chain for specific soil and terrain conditions?

When choosing the right trencher chain for specific soil and terrain conditions, several key factors should be taken into account to ensure efficient and effective trenching operations:

1. Soil Type:

– Consider the type of soil you will be trenching through. Different trencher chains are designed to handle various soil types, such as soft soil, clay, rocky soil, or compacted earth.

2. Trench Dimensions:

– Determine the required trench dimensions, including depth and width. Ensure the selected trencher chain is suitable for achieving the desired trench size.

3. Trencher Machine Compatibility:

– Ensure the trencher chain is compatible with the trencher machine you will be using. The chain should fit securely and function optimally with the machine.

4. Cutting Teeth or Blades:

– Check the design and quality of the cutting teeth or blades on the trencher chain. The teeth should be sharp and durable, capable of effectively cutting through the specific soil type.

5. Wear Resistance:

– Look for a trencher chain with wear-resistant properties, especially if trenching through abrasive or rocky terrain. Chains with hard-wearing materials will have a longer lifespan.

6. Self-Cleaning Design:

– Consider a trencher chain with a self-cleaning design, which prevents soil and debris from building up and impeding the trenching process.

7. Traction:

– Evaluate the traction capabilities of the trencher chain, particularly if working in uneven or challenging terrain. Sufficient traction ensures smooth and steady progress.

8. Weather Resistance:

– Depending on the environment, choose a trencher chain with weather-resistant properties, especially if trenching in wet or corrosive conditions.

9. Ground Stability:

– For unstable or soft ground, consider a trencher chain with features that minimize ground disturbance and prevent soil collapse.

10. Manufacturer’s Recommendations:

– Refer to the manufacturer’s guidelines and recommendations for the trencher chain’s specific applications and limitations.

By considering these factors, you can select the right trencher chain that matches the soil and terrain conditions, ensuring efficient and productive trenching operations with minimal downtime and wear on the equipment.

China OEM Industrial Transmission 24ass-2 Conveyor Duplex Stainless Steel Roller Chains  China OEM Industrial Transmission 24ass-2 Conveyor Duplex Stainless Steel Roller Chains
editor by CX 2024-05-09

China best Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field

Product Description

A Series Short Pitch Precision Multiple Strand Roller Chains & Bush Chains

 

ANSI
Chain No.

Chain No.

Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness

Tmax
mm

Transverse pitch
    Pt     mm
Tensile strength

Qmin
kN/lbf

Average tensile strength

Q0
kN

Weight per meter
q   kg/m
Lmax
mm
Lcmax
mm
120-5 24A-5 38.100 22.23 25.22 11.10 232.3 236.1 35.70 4.80 45.44 635.0/142848 698.50 29.40

 

 

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CHINAMFG paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CHINAMFG the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CHINAMFG flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

Similar Chain Products

      CC600 Conveyor Chain          C55 Conveyor Chain                        Sugar Cane Conveyor Chain

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CHINAMFG Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CHINAMFG range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
Surface Treatment: Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

trencher chain

How do I identify signs of wear and fatigue in a trencher chain, and when should I replace it to prevent downtime?

Regularly inspecting your trencher chain for signs of wear and fatigue is crucial to prevent unexpected downtime and maintain optimal trenching performance. Here are the steps to identify such signs and determine when to replace the chain:

1. Check Cutting Teeth:

– Examine the cutting teeth or blades on the trencher chain. Look for signs of excessive wear, such as flattened or severely worn teeth. Dull or damaged teeth will result in inefficient trenching.

2. Inspect Chain Links:

– Check the chain links for signs of bending, cracking, or stretching. Damaged links can lead to misalignment, affecting the chain’s performance.

3. Measure Chain Pitch:

– Measure the chain pitch, which is the distance between adjacent cutting teeth. If the chain pitch has significantly increased compared to the original specifications, it indicates wear and the need for replacement.

4. Look for Missing Teeth:

– Missing cutting teeth can cause uneven trenching and increase stress on the remaining teeth. Replace the chain if multiple teeth are missing.

5. Examine Chain Guides:

– Check the chain guides or rails on the trencher machine. If they show signs of excessive wear or damage, it may affect the chain’s alignment and performance.

6. Monitor Chain Tension:

– Keep track of the chain tension during operation. A loose or overly tight chain can lead to premature wear and affect trenching efficiency.

7. Consider Performance Issues:

– If you notice reduced trenching speed, increased vibration, or decreased cutting efficiency, it could be a sign of worn-out or fatigued trencher chain.

When to Replace:

The specific replacement timeline for a trencher chain depends on factors such as the frequency of use, soil conditions, and maintenance practices. As a general guideline:

– Replace the trencher chain if cutting teeth are worn to half their original size or show significant damage.

– Consider replacement if multiple cutting teeth are missing or broken.

– If the chain links show signs of fatigue, stretching, or damage, it’s time to replace the chain.

– Replace the chain if it consistently fails to maintain proper tension or alignment.

Timely replacement of a worn-out trencher chain is essential to avoid unexpected downtime, maintain trenching efficiency, and reduce the risk of costly repairs to the trencher machine. Regular inspections and proactive replacement will ensure smooth trenching operations and maximize the lifespan of your trencher chain.

trencher chain

What are the common issues and troubleshooting tips for trencher chains, such as chain slipping or jamming?

Trencher chains may encounter various issues during operation, and understanding common problems and troubleshooting tips can help resolve them efficiently. Here are some common issues and their troubleshooting tips:

1. Chain Slipping:

Possible Causes: Chain slipping can occur due to insufficient tension, worn-out sprockets, or damaged chain links.

Troubleshooting Tips: Check and adjust the chain tension as per the manufacturer’s recommendations. Inspect the sprockets for wear or damage, and replace them if necessary. Examine the chain links for any signs of wear, bending, or stretching, and replace damaged links promptly.

2. Chain Jamming:

Possible Causes: Chain jamming can be caused by debris, rocks, or foreign objects getting stuck in the chain or guides.

Troubleshooting Tips: Stop the trencher machine immediately if you encounter a chain jam. Safely remove any debris or objects stuck in the chain and guides. Inspect the chain and guides for damage caused by the jam and make necessary repairs before resuming trenching.

3. Uneven Trench Depth:

Possible Causes: Uneven trench depth can result from improper chain tension, worn-out cutting teeth, or uneven ground conditions.

Troubleshooting Tips: Ensure the chain tension is properly adjusted for even trenching. Regularly inspect and replace worn-out cutting teeth to maintain consistent trench depth. If the ground conditions are uneven, adjust the trenching speed or use a different trencher attachment to achieve a smoother trench.

4. Excessive Chain Wear:

Possible Causes: Excessive chain wear can be caused by operating the trencher in abrasive soil conditions or using a worn-out chain.

Troubleshooting Tips: Choose the appropriate trencher chain with cutting teeth suitable for the soil conditions you are working in. Regularly inspect and maintain the trencher chain, including lubrication, to reduce wear and tear.

5. Chain Breakage:

Possible Causes: Chain breakage can occur due to overloading the trencher, using a damaged chain, or operating the machine at excessive speeds.

Troubleshooting Tips: Avoid overloading the trencher with large rocks or hard obstacles. Always use a well-maintained and undamaged chain. Operate the trencher at appropriate speeds recommended by the manufacturer.

Regular maintenance, proper tensioning, and choosing the right trencher chain for the soil conditions are essential to prevent issues and ensure smooth trenching operations. If problems persist, consult the trencher’s operation manual or seek assistance from a qualified technician or dealer.

trencher chain

What are the different types of trencher chains available, and when should each be used?

There are several types of trencher chains available, each designed for specific trenching applications and soil/terrain conditions. Here are the common types and their recommended uses:

1. Standard Trencher Chain:

– This type of chain is suitable for general-purpose trenching in relatively soft to moderately compacted soils. It is commonly used in residential or light commercial projects for laying utility lines and irrigation systems.

2. Rock Trencher Chain:

– A rock trencher chain is designed for challenging and rocky terrain. It features heavy-duty cutting teeth that can handle hard and abrasive materials, making it ideal for trenching in rocky soils and compacted surfaces.

3. Clay Trencher Chain:

– This chain type is specifically designed for trenching in clay-heavy soils. It features specialized cutting teeth or blades that can efficiently cut through and handle sticky clay without clogging.

4. Heavy-Duty Trencher Chain:

– A heavy-duty trencher chain is built to withstand tough conditions and long hours of trenching. It is commonly used in large-scale construction and infrastructure projects, as well as in challenging terrain.

5. Micro Trencher Chain:

– A micro trencher chain is used for creating narrow trenches, typically for applications such as fiber optic cable installations. It is ideal for minimizing ground disruption in urban areas and requires less restoration work after trenching.

6. Hydraulic Trencher Chain:

– Hydraulic trencher chains are designed for use with hydraulic trenchers. They offer excellent cutting performance and versatility in various soil conditions and can be adjusted to create trenches of different widths and depths.

7. Skid Steer Trencher Chain:

– Skid steer trencher chains are used with skid steer loaders to dig trenches for various utility installations and landscaping projects. They are compact and maneuverable, making them suitable for tight spaces and smaller-scale trenching.

When choosing a trencher chain, consider the specific soil and terrain conditions you will be working in, as well as the depth and width of the required trench. Selecting the appropriate trencher chain for the job will ensure efficient and successful trenching operations.
China best Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field  China best Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field
editor by CX 2024-05-08

China Best Sales Stainless Steel 10ass-3 Triplex Engineering Machinery Roller Chains and Bush Chain

Product Description

Chain No. Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness
t/Tmax
mm
Transverse pitch
Pt
mm
Breaking load

Q
kN/lbf

Weight per meter
q
kg/m
Lmax
mm
Lcmax
mm
10ASS-3 15.875 10.16 9.40 5.08 57.-0-0. p. 211. Retrieved 17 May 2-0-0. p. 86. Retrieved 30 January 2015.
 Green 1996, pp. 2337-2361
 “ANSI G7 Standard Roller Chain – Tsubaki Europe”. Tsubaki Europe. Tsubakimoto Europe B.V. Retrieved 18 June 2.
External links
    Wikimedia Commons has media related to Roller chains.
The Complete Xihu (West Lake) Dis. to Chain
Categories: Chain drivesMechanical power transmissionMechanical power control

Why Choose Us

1.     Reliable Quality Assurance System
2.     Cutting-Edge Computer-Controlled CNC Machines
3.     Bespoke Solutions from Highly Experienced Specialists 
4.     Customization and OEM Available for Specific Application
5.     Extensive Inventory of Spare Parts and Accessories
6.     Well-Developed CHINAMFG Marketing Network 
7.     Efficient After-Sale Service System

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
Surface Treatment: Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

trencher chain

What are the standard sizes and configurations of trencher chains commonly used in the industry?

In the trencher industry, trencher chains come in various sizes and configurations to accommodate different trenching needs and equipment types. While specific sizes and configurations may vary between manufacturers, here are the common standard options:

1. Chain Width:

– The width of trencher chains typically ranges from 2 inches (50 mm) for micro trenchers to 12 inches (305 mm) or more for heavy-duty trenchers used in large-scale construction projects.

2. Chain Pitch:

– The chain pitch refers to the distance between adjacent cutting teeth or blades. Common chain pitches include 1.5 inches (38 mm) and 2 inches (50 mm). Smaller pitches are used for finer trenching work, while larger pitches are used for heavy-duty applications.

3. Number of Cutting Teeth:

– Trencher chains come with different numbers of cutting teeth or blades, depending on the chain’s width and intended use. More cutting teeth provide better cutting efficiency and smoother trenching.

4. Chain Configuration:

– Trencher chains can have different configurations based on the type of trencher machine and the specific trenching requirements. Common configurations include standard chain (suitable for most trenching applications), cup tooth chain (provides improved cutting in rocky soil), and combination tooth chain (a mix of cup and standard teeth for versatile performance).

5. Chain Length:

– The length of the trencher chain depends on the trenching depth required. Chains can be customized or extended to match the depth of the trench needed for a particular project.

6. Chain Material:

– Trencher chains are commonly made from high-quality steel for durability and wear resistance. Some chains may also have specialized coatings or materials to enhance their performance in specific soil conditions.

7. Teeth Material:

– The teeth or cutting blades on trencher chains are typically made from carbide or other hardened materials to withstand the abrasive nature of trenching through soil and rocks.

When selecting a trencher chain, it is crucial to consider the size, configuration, and material that best suit the specific trenching project and the equipment being used. Choosing the right trencher chain will ensure efficient and successful trenching operations for various applications in the industry.

trencher chain

Are there any training resources or guides available on trencher chain maintenance and operation?

Yes, there are various training resources and guides available to assist with trencher chain maintenance and operation. These resources are valuable for operators, technicians, and maintenance personnel to ensure safe and efficient trenching operations. Here are some common types of training materials and where to find them:

1. Manufacturer’s Manuals:

– Trencher manufacturers typically provide detailed operation and maintenance manuals specific to their trencher models. These manuals cover topics such as chain installation, tensioning, lubrication, troubleshooting, and safety guidelines.

– Manufacturer manuals are usually available in both printed and digital formats and can be obtained directly from the manufacturer’s website or through authorized dealers.

2. Online Training Videos:

– Many trencher manufacturers and industry-related websites offer online training videos. These videos provide visual demonstrations of proper trencher chain maintenance, installation, and operation techniques.

– Online training videos are convenient and accessible, allowing operators to learn at their own pace and review the content as needed.

3. Trencher Safety Courses:

– Some organizations and training institutes offer trencher safety courses that cover various aspects of trencher operation and maintenance, including chain care.

– These courses often include hands-on training, classroom sessions, and safety protocols to ensure operators are well-prepared for trenching tasks.

4. Industry Publications:

– Industry-specific publications, magazines, and websites often feature articles and guides related to trencher chain maintenance and operation.

– These resources may include tips from experts, case studies, and best practices to improve trenching efficiency and reduce downtime.

5. Equipment Rental Companies:

– Equipment rental companies that offer trencher rentals often provide basic training on how to use and maintain the equipment, including the trencher chain.

– Rental companies may have training materials or guides available for customers to reference.

6. In-House Training:

– Some larger construction companies or organizations with a fleet of trenchers may offer in-house training programs for their operators and maintenance staff.

– In-house training can be tailored to specific trencher models and the company’s unique requirements.

Utilizing these training resources and guides can significantly improve the understanding of trencher chain maintenance and operation, leading to safer working conditions, reduced downtime, and enhanced trenching efficiency.

trencher chain

How do I properly maintain and sharpen a trencher chain for optimal cutting performance?

Proper maintenance and regular sharpening are essential to ensure the trencher chain maintains optimal cutting performance and efficiency. Follow these steps to keep your trencher chain in top condition:

1. Regular Inspections:

– Conduct routine inspections to check for signs of wear, damage, or misalignment. Look for any dull or damaged cutting teeth that need attention.

2. Cleaning:

– Before sharpening, clean the trencher chain thoroughly to remove dirt, debris, and excess grease or oil.

3. Sharpening:

– Use a suitable chain sharpening tool to sharpen the cutting teeth of the trencher chain. Follow the manufacturer’s guidelines for the correct angle and technique.

4. Replace Worn Teeth:

– If any cutting teeth are excessively worn or damaged, replace them with new ones to maintain consistent cutting performance.

5. Check Tension and Alignment:

– Ensure the trencher chain is correctly tensioned and aligned to prevent unnecessary wear and ensure smooth operation.

6. Lubrication:

– Apply appropriate lubrication to the trencher chain to reduce friction and wear between the chain components.

7. Store Properly:

– When not in use, store the trencher chain in a dry and clean environment to prevent rust and damage.

8. Professional Maintenance:

– If you are not familiar with sharpening and maintenance techniques, consider seeking the help of a professional to ensure the trencher chain is properly cared for.

9. Follow Manufacturer’s Guidelines:

– Adhere to the manufacturer’s maintenance recommendations and guidelines to maximize the trencher chain’s lifespan and cutting performance.

Regular maintenance and sharpening will ensure that your trencher chain operates optimally, providing efficient and precise cutting in various soil and terrain conditions. By keeping the chain in good condition, you can avoid unnecessary wear and tear and extend its overall lifespan.

China Best Sales Stainless Steel 10ass-3 Triplex Engineering Machinery Roller Chains and Bush Chain  China Best Sales Stainless Steel 10ass-3 Triplex Engineering Machinery Roller Chains and Bush Chain
editor by CX 2024-05-02

China Good quality Stainless Steel 16ass-3 Triplex Transmission Parts Short Pitch Roller Chains

Product Description

Chain No. Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness
t/Tmax
mm
Transverse pitch
Pt
mm
Breaking load

Q
kN/lbf

Weight per meter
q
kg/m
Lmax
mm
Lcmax
mm
16ASS-3 25.4-0-0. p. 211. Retrieved 17 May 2-0-0. p. 86. Retrieved 30 January 2015.
 Green 1996, pp. 2337-2361
 “ANSI G7 Standard Roller Chain – Tsubaki Europe”. Tsubaki Europe. Tsubakimoto Europe B.V. Retrieved 18 June 2.
External links
 Wikimedia Commons has media related to Roller chains.
The Complete Xihu (West Lake) Dis. to Chain
Categories: Chain drivesMechanical power transmissionMechanical power control

WHY CHOOSE US 

1.     Reliable Quality Assurance System
2.     Cutting-Edge Computer-Controlled CNC Machines
3.     Bespoke Solutions from Highly Experienced Specialists 
4.     Customization and OEM Available for Specific Application
5.     Extensive Inventory of Spare Parts and Accessories
6.     Well-Developed CHINAMFG Marketing Network 
7.     Efficient After-Sale Service System

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard, Standard
Application: Textile Machinery, Garment Machinery, Electric Cars, Motorcycle, Food Machinery, Agricultural Machinery, Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing, Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

trencher chain

How do I identify signs of wear and fatigue in a trencher chain, and when should I replace it to prevent downtime?

Regularly inspecting your trencher chain for signs of wear and fatigue is crucial to prevent unexpected downtime and maintain optimal trenching performance. Here are the steps to identify such signs and determine when to replace the chain:

1. Check Cutting Teeth:

– Examine the cutting teeth or blades on the trencher chain. Look for signs of excessive wear, such as flattened or severely worn teeth. Dull or damaged teeth will result in inefficient trenching.

2. Inspect Chain Links:

– Check the chain links for signs of bending, cracking, or stretching. Damaged links can lead to misalignment, affecting the chain’s performance.

3. Measure Chain Pitch:

– Measure the chain pitch, which is the distance between adjacent cutting teeth. If the chain pitch has significantly increased compared to the original specifications, it indicates wear and the need for replacement.

4. Look for Missing Teeth:

– Missing cutting teeth can cause uneven trenching and increase stress on the remaining teeth. Replace the chain if multiple teeth are missing.

5. Examine Chain Guides:

– Check the chain guides or rails on the trencher machine. If they show signs of excessive wear or damage, it may affect the chain’s alignment and performance.

6. Monitor Chain Tension:

– Keep track of the chain tension during operation. A loose or overly tight chain can lead to premature wear and affect trenching efficiency.

7. Consider Performance Issues:

– If you notice reduced trenching speed, increased vibration, or decreased cutting efficiency, it could be a sign of worn-out or fatigued trencher chain.

When to Replace:

The specific replacement timeline for a trencher chain depends on factors such as the frequency of use, soil conditions, and maintenance practices. As a general guideline:

– Replace the trencher chain if cutting teeth are worn to half their original size or show significant damage.

– Consider replacement if multiple cutting teeth are missing or broken.

– If the chain links show signs of fatigue, stretching, or damage, it’s time to replace the chain.

– Replace the chain if it consistently fails to maintain proper tension or alignment.

Timely replacement of a worn-out trencher chain is essential to avoid unexpected downtime, maintain trenching efficiency, and reduce the risk of costly repairs to the trencher machine. Regular inspections and proactive replacement will ensure smooth trenching operations and maximize the lifespan of your trencher chain.

trencher chain

Are there any training resources or guides available on trencher chain maintenance and operation?

Yes, there are various training resources and guides available to assist with trencher chain maintenance and operation. These resources are valuable for operators, technicians, and maintenance personnel to ensure safe and efficient trenching operations. Here are some common types of training materials and where to find them:

1. Manufacturer’s Manuals:

– Trencher manufacturers typically provide detailed operation and maintenance manuals specific to their trencher models. These manuals cover topics such as chain installation, tensioning, lubrication, troubleshooting, and safety guidelines.

– Manufacturer manuals are usually available in both printed and digital formats and can be obtained directly from the manufacturer’s website or through authorized dealers.

2. Online Training Videos:

– Many trencher manufacturers and industry-related websites offer online training videos. These videos provide visual demonstrations of proper trencher chain maintenance, installation, and operation techniques.

– Online training videos are convenient and accessible, allowing operators to learn at their own pace and review the content as needed.

3. Trencher Safety Courses:

– Some organizations and training institutes offer trencher safety courses that cover various aspects of trencher operation and maintenance, including chain care.

– These courses often include hands-on training, classroom sessions, and safety protocols to ensure operators are well-prepared for trenching tasks.

4. Industry Publications:

– Industry-specific publications, magazines, and websites often feature articles and guides related to trencher chain maintenance and operation.

– These resources may include tips from experts, case studies, and best practices to improve trenching efficiency and reduce downtime.

5. Equipment Rental Companies:

– Equipment rental companies that offer trencher rentals often provide basic training on how to use and maintain the equipment, including the trencher chain.

– Rental companies may have training materials or guides available for customers to reference.

6. In-House Training:

– Some larger construction companies or organizations with a fleet of trenchers may offer in-house training programs for their operators and maintenance staff.

– In-house training can be tailored to specific trencher models and the company’s unique requirements.

Utilizing these training resources and guides can significantly improve the understanding of trencher chain maintenance and operation, leading to safer working conditions, reduced downtime, and enhanced trenching efficiency.

trencher chain

What are the different types of trencher chains available, and when should each be used?

There are several types of trencher chains available, each designed for specific trenching applications and soil/terrain conditions. Here are the common types and their recommended uses:

1. Standard Trencher Chain:

– This type of chain is suitable for general-purpose trenching in relatively soft to moderately compacted soils. It is commonly used in residential or light commercial projects for laying utility lines and irrigation systems.

2. Rock Trencher Chain:

– A rock trencher chain is designed for challenging and rocky terrain. It features heavy-duty cutting teeth that can handle hard and abrasive materials, making it ideal for trenching in rocky soils and compacted surfaces.

3. Clay Trencher Chain:

– This chain type is specifically designed for trenching in clay-heavy soils. It features specialized cutting teeth or blades that can efficiently cut through and handle sticky clay without clogging.

4. Heavy-Duty Trencher Chain:

– A heavy-duty trencher chain is built to withstand tough conditions and long hours of trenching. It is commonly used in large-scale construction and infrastructure projects, as well as in challenging terrain.

5. Micro Trencher Chain:

– A micro trencher chain is used for creating narrow trenches, typically for applications such as fiber optic cable installations. It is ideal for minimizing ground disruption in urban areas and requires less restoration work after trenching.

6. Hydraulic Trencher Chain:

– Hydraulic trencher chains are designed for use with hydraulic trenchers. They offer excellent cutting performance and versatility in various soil conditions and can be adjusted to create trenches of different widths and depths.

7. Skid Steer Trencher Chain:

– Skid steer trencher chains are used with skid steer loaders to dig trenches for various utility installations and landscaping projects. They are compact and maneuverable, making them suitable for tight spaces and smaller-scale trenching.

When choosing a trencher chain, consider the specific soil and terrain conditions you will be working in, as well as the depth and width of the required trench. Selecting the appropriate trencher chain for the job will ensure efficient and successful trenching operations.
China Good quality Stainless Steel 16ass-3 Triplex Transmission Parts Short Pitch Roller Chains  China Good quality Stainless Steel 16ass-3 Triplex Transmission Parts Short Pitch Roller Chains
editor by CX 2024-04-04

China OEM 240 a Series General Hardware Sugar Mill Chain /Spike Chain/ Hollow Pin Chain /Engineering Roller Chains

Product Description

A Series Short pitch Precision Simplex Roller Chains & Bush Chains

ISO/ANSI/ DIN
Chain No.
China
Chain No.
Pitch
P
mm
Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
 Plate  thickness

Tmax
 mm

Tensile strength

Qmin
kN/lbf

Average tensile strength
Q0
kN
Weight per meter
q  
 kg/m
Lmax
mm
Lcmax
mm
240 48A-1 76.2000 47.63 47.35 23.81 95.50 103.00 72.39 9.50 510.30/115977 671.6 23.20

*Bush chain:d1 in the table indicates the external diameter of the bush

Chain Pictures

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CHINAMFG paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CHINAMFG the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CHINAMFG flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

Similar Chain

    CC600 Conveyor Chain                     C55 Conveyor Chain                            Drag Chain
 

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CHINAMFG Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CHINAMFG range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

trencher chain

What materials are used to manufacture trencher chains, and how do they impact their durability?

Trencher chains are typically manufactured using high-quality materials to ensure durability and performance in demanding trenching conditions. The choice of materials significantly impacts the chain’s durability and overall lifespan. Here are the common materials used to manufacture trencher chains and their impact on durability:

1. High-Quality Steel:

– High-quality steel, such as alloy or carbon steel, is commonly used for the chain’s main body and links. Steel provides excellent strength and resistance to wear, making the chain durable and suitable for various soil types.

2. Carbide:

– Carbide is a hard and tough material often used to manufacture cutting teeth or blades on trencher chains. Carbide cutting teeth offer exceptional wear resistance and longevity, making them ideal for trenching in abrasive and rocky soils.

3. Hardened Steel:

– Some trencher chains feature hardened steel cutting teeth or blades. Hardening the steel enhances its toughness and wear resistance, improving the chain’s durability in challenging trenching conditions.

4. Heat Treatment:

– Heat treatment is applied to certain components of the trencher chain to enhance their strength and durability. It involves heating the material to specific temperatures and then cooling it at a controlled rate to achieve the desired properties.

5. Coatings and Treatments:

– Some trencher chains may have specialized coatings or treatments applied to their surfaces. These coatings, such as chrome plating or zinc-nickel coating, provide additional protection against corrosion and wear, further extending the chain’s durability.

Impact on Durability:

The use of high-quality materials in trencher chain manufacturing ensures that the chain can withstand the rigors of trenching in various soil conditions. Carbide or hardened steel cutting teeth offer superior wear resistance, reducing the need for frequent replacements and ensuring longer-lasting performance.

The combination of heat treatment and specialized coatings enhances the chain’s overall durability and helps prevent premature wear and corrosion. These features contribute to a longer lifespan for the trencher chain, reducing downtime and maintenance costs in the long run.

When selecting a trencher chain, consider the materials used in its construction to ensure that it is well-suited for the specific trenching applications and soil conditions you will encounter.

trencher chain

How do I measure the tension and sag in a trencher chain for proper installation and operation?

Measuring the tension and sag in a trencher chain is crucial for ensuring proper installation and smooth operation. Here’s a step-by-step guide on how to do it:

1. Tension Measurement:

– Start by disconnecting the trencher chain from the drive system to eliminate tension.

– Using a tension gauge or a spring scale, measure the force required to lift the chain from the center of the top run (the upper part of the chain) to a specified height (usually around 2-4 inches).

– Ensure the tension measurement aligns with the manufacturer’s recommendations. Tension requirements may vary based on the trencher’s size, chain type, and application.

2. Sag Measurement:

– With the chain still disconnected from the drive system, measure the distance between the top of the chain’s guide bar and a straight line connecting two points on the chain’s upper run, typically 10 feet apart.

– This distance is the sag, and it should be measured at multiple points along the length of the chain to check for uniformity.

– Sag requirements depend on the chain type and size, as well as the trenching conditions. However, as a general rule, the sag should be within the manufacturer’s recommended range to ensure proper chain engagement and trenching performance.

3. Adjustments:

– If the tension or sag measurements are not within the recommended range, adjust the chain tension by tightening or loosening the tensioning system or chain tensioner according to the manufacturer’s guidelines.

– Ensure the chain’s tension is even on both sides to avoid uneven wear and potential chain alignment issues.

– For sag adjustments, adjust the position of the chain’s tensioner or guides to achieve the desired sag measurements along the chain’s length.

4. Reconnect and Test:

– Once the tension and sag are correctly adjusted, reconnect the trencher chain to the drive system.

– Test the trencher in a safe and controlled environment to ensure smooth and efficient operation. Monitor the chain’s performance and make any further adjustments if necessary.

5. Regular Inspection:

– Regularly inspect the tension and sag of the trencher chain during routine maintenance intervals. Over time, chains can stretch or wear, affecting their tension and sag, so periodic adjustments may be required.

– Maintaining proper tension and sag in the trencher chain ensures optimal engagement with the sprockets, reduces chain wear, and enhances trenching performance, contributing to longer chain life and overall trencher efficiency.

trencher chain

What are the different types of trencher chains available, and when should each be used?

There are several types of trencher chains available, each designed for specific trenching applications and soil/terrain conditions. Here are the common types and their recommended uses:

1. Standard Trencher Chain:

– This type of chain is suitable for general-purpose trenching in relatively soft to moderately compacted soils. It is commonly used in residential or light commercial projects for laying utility lines and irrigation systems.

2. Rock Trencher Chain:

– A rock trencher chain is designed for challenging and rocky terrain. It features heavy-duty cutting teeth that can handle hard and abrasive materials, making it ideal for trenching in rocky soils and compacted surfaces.

3. Clay Trencher Chain:

– This chain type is specifically designed for trenching in clay-heavy soils. It features specialized cutting teeth or blades that can efficiently cut through and handle sticky clay without clogging.

4. Heavy-Duty Trencher Chain:

– A heavy-duty trencher chain is built to withstand tough conditions and long hours of trenching. It is commonly used in large-scale construction and infrastructure projects, as well as in challenging terrain.

5. Micro Trencher Chain:

– A micro trencher chain is used for creating narrow trenches, typically for applications such as fiber optic cable installations. It is ideal for minimizing ground disruption in urban areas and requires less restoration work after trenching.

6. Hydraulic Trencher Chain:

– Hydraulic trencher chains are designed for use with hydraulic trenchers. They offer excellent cutting performance and versatility in various soil conditions and can be adjusted to create trenches of different widths and depths.

7. Skid Steer Trencher Chain:

– Skid steer trencher chains are used with skid steer loaders to dig trenches for various utility installations and landscaping projects. They are compact and maneuverable, making them suitable for tight spaces and smaller-scale trenching.

When choosing a trencher chain, consider the specific soil and terrain conditions you will be working in, as well as the depth and width of the required trench. Selecting the appropriate trencher chain for the job will ensure efficient and successful trenching operations.
China OEM 240 a Series General Hardware Sugar Mill Chain /Spike Chain/ Hollow Pin Chain /Engineering Roller Chains  China OEM 240 a Series General Hardware Sugar Mill Chain /Spike Chain/ Hollow Pin Chain /Engineering Roller Chains
editor by CX 2024-04-02

China Custom Triplex Stainless Steel 06bss-3 Transmission Short Pitch Roller Chains and Bush Chain

Product Description

Chain No. Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness
t/Tmax
mm
Transverse pitch
Pt
mm
Breaking load

Q
kN/lbf

Weight per meter
q
kg/m
Lmax
mm
Lcmax
mm
#06BSS-3 9.525 6.35 5.72 3.28 33.50 34.60 8.20 1.30 10.24 17.3/3889 1.09

*Bush chain:d1 in the table indicates the external diameter of the bush
*Straight side plates
Stainless steel chains are suitable for corrosive conditions involving food,chemicals pharmaceuticals,etc.and also suitable for high and low temperature conditions.

Roller chain
Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient[1] means of power transmission.

Though CHINAMFG Renold is credited with inventing the roller chain in 1880, sketches by Leonardo da Vinci in the 16th century show a chain with a roller bearing.

Construction of the chain
Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

Lubrication
Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CHINAMFG paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

Motorcycle chain lubrication
Chains operating at high speeds comparable to those on motorcycles should be used in conjunction with an oil bath. For modern motorcycles this is not possible, and most motorcycle chains run unprotected. Thus, motorcycle chains tend to wear very quickly relative to other applications. They are subject to extreme forces and are exposed to rain, dirt, sand and road salt.

Motorcycle chains are part of the drive train to transmit the motor power to the back wheel. Properly lubricated chains can reach an efficiency of 98% or greater in the transmission. Unlubricated chains will significantly decrease performance and increase chain and sprocket wear.

Two types of CHINAMFG lubricants are available for motorcycle chains: spray on lubricants and oil drip feed systems.

Spray lubricants may contain wax or PTFE. While these lubricants use tack additives to stay on the chain they can also attract dirt and sand from the road and over time produce a grinding paste that accelerates component wear.
Oil drip feed systems continuously lubricate the chain and use light oil that does not stick to the chain. Research has shown that oil drip feed systems provide the greatest wear protection and greatest power saving.

Variants in design

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

Use

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CHINAMFG the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CHINAMFG flight, a system known as Thrust vectoring.
 

Wear

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

{\displaystyle \%=((M-(S*P))/(S*P))*100}

 

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

Chain strength

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

Chain standards

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25.

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

See also

Why Choose Us

1.     Reliable Quality Assurance System
2.     Cutting-Edge Computer-Controlled CNC Machines
3.     Bespoke Solutions from Highly Experienced Specialists 
4.     Customization and OEM Available for Specific Application
5.     Extensive Inventory of Spare Parts and Accessories
6.     Well-Developed CHINAMFG Marketing Network 
7.     Efficient After-Sale Service System

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard, Standard
Application: Textile Machinery, Garment Machinery, Electric Cars, Motorcycle, Food Machinery, Agricultural Machinery, Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing, Polishing
Structure: Roller Chain, Rotransmission Chain, Pulling Chain, Driving Chain
Material: Stainless Steel, Rubber
Type: Bush Chain, Transmission Chain, Pulling Chain, Driving Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

trencher chain

What are the standard sizes and configurations of trencher chains commonly used in the industry?

In the trencher industry, trencher chains come in various sizes and configurations to accommodate different trenching needs and equipment types. While specific sizes and configurations may vary between manufacturers, here are the common standard options:

1. Chain Width:

– The width of trencher chains typically ranges from 2 inches (50 mm) for micro trenchers to 12 inches (305 mm) or more for heavy-duty trenchers used in large-scale construction projects.

2. Chain Pitch:

– The chain pitch refers to the distance between adjacent cutting teeth or blades. Common chain pitches include 1.5 inches (38 mm) and 2 inches (50 mm). Smaller pitches are used for finer trenching work, while larger pitches are used for heavy-duty applications.

3. Number of Cutting Teeth:

– Trencher chains come with different numbers of cutting teeth or blades, depending on the chain’s width and intended use. More cutting teeth provide better cutting efficiency and smoother trenching.

4. Chain Configuration:

– Trencher chains can have different configurations based on the type of trencher machine and the specific trenching requirements. Common configurations include standard chain (suitable for most trenching applications), cup tooth chain (provides improved cutting in rocky soil), and combination tooth chain (a mix of cup and standard teeth for versatile performance).

5. Chain Length:

– The length of the trencher chain depends on the trenching depth required. Chains can be customized or extended to match the depth of the trench needed for a particular project.

6. Chain Material:

– Trencher chains are commonly made from high-quality steel for durability and wear resistance. Some chains may also have specialized coatings or materials to enhance their performance in specific soil conditions.

7. Teeth Material:

– The teeth or cutting blades on trencher chains are typically made from carbide or other hardened materials to withstand the abrasive nature of trenching through soil and rocks.

When selecting a trencher chain, it is crucial to consider the size, configuration, and material that best suit the specific trenching project and the equipment being used. Choosing the right trencher chain will ensure efficient and successful trenching operations for various applications in the industry.

trencher chain

How do I measure the tension and sag in a trencher chain for proper installation and operation?

Measuring the tension and sag in a trencher chain is crucial for ensuring proper installation and smooth operation. Here’s a step-by-step guide on how to do it:

1. Tension Measurement:

– Start by disconnecting the trencher chain from the drive system to eliminate tension.

– Using a tension gauge or a spring scale, measure the force required to lift the chain from the center of the top run (the upper part of the chain) to a specified height (usually around 2-4 inches).

– Ensure the tension measurement aligns with the manufacturer’s recommendations. Tension requirements may vary based on the trencher’s size, chain type, and application.

2. Sag Measurement:

– With the chain still disconnected from the drive system, measure the distance between the top of the chain’s guide bar and a straight line connecting two points on the chain’s upper run, typically 10 feet apart.

– This distance is the sag, and it should be measured at multiple points along the length of the chain to check for uniformity.

– Sag requirements depend on the chain type and size, as well as the trenching conditions. However, as a general rule, the sag should be within the manufacturer’s recommended range to ensure proper chain engagement and trenching performance.

3. Adjustments:

– If the tension or sag measurements are not within the recommended range, adjust the chain tension by tightening or loosening the tensioning system or chain tensioner according to the manufacturer’s guidelines.

– Ensure the chain’s tension is even on both sides to avoid uneven wear and potential chain alignment issues.

– For sag adjustments, adjust the position of the chain’s tensioner or guides to achieve the desired sag measurements along the chain’s length.

4. Reconnect and Test:

– Once the tension and sag are correctly adjusted, reconnect the trencher chain to the drive system.

– Test the trencher in a safe and controlled environment to ensure smooth and efficient operation. Monitor the chain’s performance and make any further adjustments if necessary.

5. Regular Inspection:

– Regularly inspect the tension and sag of the trencher chain during routine maintenance intervals. Over time, chains can stretch or wear, affecting their tension and sag, so periodic adjustments may be required.

– Maintaining proper tension and sag in the trencher chain ensures optimal engagement with the sprockets, reduces chain wear, and enhances trenching performance, contributing to longer chain life and overall trencher efficiency.

trencher chain

How does a trencher chain differ from other types of chains used in heavy machinery?

A trencher chain differs from other types of chains used in heavy machinery primarily in its design and purpose. Here are the key differences:

1. Cutting Design:

– Trencher Chain: A trencher chain is specifically designed for cutting through soil and other materials to create trenches. It features cutting teeth or blades arranged in a continuous loop to efficiently dig into the ground.

– Other Heavy Machinery Chains: Chains used in other heavy machinery, such as excavators or loaders, may not have cutting teeth but are designed for tasks like lifting, towing, or moving heavy objects.

2. Application:

– Trencher Chain: The primary application of a trencher chain is trenching, which involves digging narrow and deep channels in the ground for various purposes, such as laying utility lines or drainage systems.

– Other Heavy Machinery Chains: Chains used in other heavy machinery serve different functions, such as lifting and moving materials, excavating, and loading.

3. Loop Configuration:

– Trencher Chain: A trencher chain is typically designed in a loop configuration to form a continuous cutting edge. This design enables smooth and continuous trenching operations.

– Other Heavy Machinery Chains: Chains used in other heavy machinery may have different configurations based on their specific functions and applications.

4. Teeth or Blades:

– Trencher Chain: The cutting teeth or blades on a trencher chain are sharp and robust, specifically suited for cutting through the ground and various materials encountered during trenching.

– Other Heavy Machinery Chains: Chains used in other heavy machinery may not have sharp teeth or blades, as their purpose is not for cutting into materials.

5. Size and Shape:

– Trencher Chain: Trencher chains come in various sizes and shapes, depending on the trenching machine and the required trench dimensions.

– Other Heavy Machinery Chains: Chains used in other heavy machinery also come in different sizes and configurations, tailored to the specific needs of the equipment and its intended applications.

Overall, the primary difference lies in the design, function, and application of the trencher chain, which is uniquely suited for trenching tasks in construction and landscaping projects.

China Custom Triplex Stainless Steel 06bss-3 Transmission Short Pitch Roller Chains and Bush Chain  China Custom Triplex Stainless Steel 06bss-3 Transmission Short Pitch Roller Chains and Bush Chain
editor by CX 2024-03-30

China supplier Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field

Product Description

A Series Short Pitch Precision Multiple Strand Roller Chains & Bush Chains

 

ANSI
Chain No.

Chain No.

Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness

Tmax
mm

Transverse pitch
    Pt     mm
Tensile strength

Qmin
kN/lbf

Average tensile strength

Q0
kN

Weight per meter
q   kg/m
Lmax
mm
Lcmax
mm
120-5 24A-5 38.100 22.23 25.22 11.10 232.3 236.1 35.70 4.80 45.44 635.0/142848 698.50 29.40

 

 

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CHINAMFG paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CHINAMFG the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CHINAMFG flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

Similar Chain Products

      CC600 Conveyor Chain          C55 Conveyor Chain                        Sugar Cane Conveyor Chain

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CHINAMFG Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CHINAMFG range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
Surface Treatment: Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

trencher chain

What are the environmental considerations when using trencher chains, especially in sensitive areas?

When using trencher chains, especially in environmentally sensitive areas, it is essential to consider and implement measures to minimize potential environmental impacts. Here are the key environmental considerations:

1. Soil Erosion and Sediment Control:

– Trenching can disturb the soil and increase the risk of erosion. Implement erosion control measures, such as sediment barriers and silt fences, to prevent soil runoff into nearby water bodies.

2. Protection of Vegetation:

– Avoid trenching through sensitive vegetation or habitats. If trenching is necessary, take measures to protect existing vegetation and restore disturbed areas after trenching is complete.

3. Spill Prevention and Cleanup:

– Store fuel and lubricants properly, and have spill kits readily available to respond to any accidental spills. Promptly clean up any spills to prevent contamination of soil and water.

4. Avoiding Wetlands and Water Bodies:

– Avoid trenching in or near wetlands and water bodies to prevent disruption of these delicate ecosystems. Obtain necessary permits and approvals if trenching is unavoidable in such areas.

5. Noise and Vibration:

– Limit noise and vibration levels during trenching operations, especially in areas near residential properties or wildlife habitats.

6. Wildlife Protection:

– Be mindful of wildlife presence in the area and take measures to avoid disturbing or harming them during trenching activities.

7. Restoration and Reclamation:

– After completing trenching work, restore the area to its original condition as much as possible. Replant vegetation and stabilize the soil to promote natural regeneration.

8. Compliance with Regulations:

– Adhere to all local, regional, and national environmental regulations and guidelines related to trenching activities.

9. Consider Alternative Methods:

– In sensitive areas, consider alternative trenching methods that may have lower environmental impacts, such as directional drilling or micro-trenching.

10. Environmental Impact Assessment:

– Conduct an environmental impact assessment before starting trenching projects in sensitive areas. This assessment will help identify potential environmental risks and plan appropriate mitigation measures.

By considering these environmental factors and implementing responsible practices, trencher chain operators can help minimize their impact on sensitive areas and ecosystems, promoting sustainable and environmentally friendly trenching practices.

trencher chain

Can trencher chains be used in combination with trencher teeth for improved digging performance?

Yes, trencher chains can be used in combination with trencher teeth to enhance digging performance in specific trenching applications. The use of trencher teeth, also known as cutting teeth or blades, along with the trencher chain offers several benefits:

1. Versatility:

– Using trencher teeth in combination with the chain allows for greater versatility in trenching. The chain efficiently cuts through the initial layer of soil and creates a guide for the trench, while the trencher teeth refine the trench’s edges and bottom for a smoother finish.

2. Improved Cutting Efficiency:

– Trencher teeth are designed with specific cutting angles and shapes to optimize cutting efficiency in different soil types. Combining the chain and trencher teeth allows for more efficient and precise trenching in various soil conditions.

3. Better Trench Quality:

– The use of trencher teeth results in improved trench quality, with clean and well-defined edges and consistent trench depth. This is especially beneficial for trenching projects that require high precision and accuracy.

4. Enhanced Durability:

– By utilizing trencher teeth in combination with the trencher chain, the workload is distributed more evenly, reducing wear on individual components and increasing overall durability.

5. Reduced Chain Wear:

– Trencher teeth help minimize the workload on the chain by breaking up the soil ahead of the chain. This can result in reduced chain wear and a longer chain lifespan.

However, it’s essential to select trencher teeth that are compatible with the trencher chain and machine specifications. Improperly matched trencher teeth may cause uneven trenching or excessive strain on the chain and machine, leading to reduced performance and potential damage.

In summary, using trencher teeth in combination with trencher chains can improve digging performance, trench quality, and overall efficiency in various trenching applications. It is recommended to consult the trencher manufacturer or supplier to ensure the correct combination of trencher teeth and chain for your specific trenching needs.

trencher chain

Can a worn-out trencher chain be repaired, or is it more cost-effective to replace it?

Whether a worn-out trencher chain can be repaired or should be replaced depends on the extent of the damage and the overall condition of the chain. Here are some considerations:

Repairing a Trencher Chain:

– Minor Damage: If the chain has minor wear or damage, such as a few dull or chipped cutting teeth, it may be possible to repair it. In such cases, individual damaged cutting teeth can be replaced, and the chain can be sharpened to restore its cutting performance.

– Welding: In some instances, a worn or broken chain link can be repaired through welding. However, welding may affect the strength and integrity of the chain, so it should be done by a skilled professional and may not be recommended for critical applications.

Replacing a Trencher Chain:

– Extensive Wear: If the trencher chain shows extensive wear or damage, such as multiple broken or severely worn cutting teeth, it may be more cost-effective to replace the entire chain. A heavily worn chain may not perform optimally even after repairs, leading to inefficiency and frequent downtime.

– Safety Concerns: A severely worn or damaged trencher chain can pose safety risks to operators and bystanders. In such cases, it is better to replace the chain with a new one to ensure safe and reliable trenching operations.

– Efficiency and Productivity: A new trencher chain will provide optimal cutting performance and efficiency, leading to improved productivity and reduced operating costs compared to a repaired chain with compromised performance.

Cost Considerations:

When deciding whether to repair or replace a trencher chain, consider the cost of repairs, including replacement teeth and labor, versus the cost of purchasing a new chain. Additionally, factor in the potential productivity gains and safety benefits of a new chain.

In general, minor wear or damage can often be repaired, while extensive wear and safety concerns may warrant the replacement of the trencher chain. Regular maintenance and prompt repairs of minor issues can help prolong the lifespan of the trencher chain and ensure optimal cutting performance.

China supplier Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field  China supplier Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field
editor by CX 2024-03-29

China factory Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field

Product Description

A Series Short Pitch Precision Multiple Strand Roller Chains & Bush Chains

 

ANSI
Chain No.

Chain No.

Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness

Tmax
mm

Transverse pitch
    Pt     mm
Tensile strength

Qmin
kN/lbf

Average tensile strength

Q0
kN

Weight per meter
q   kg/m
Lmax
mm
Lcmax
mm
120-5 24A-5 38.100 22.23 25.22 11.10 232.3 236.1 35.70 4.80 45.44 635.0/142848 698.50 29.40

 

 

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CHINAMFG paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CHINAMFG the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CHINAMFG flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

Similar Chain Products

      CC600 Conveyor Chain          C55 Conveyor Chain                        Sugar Cane Conveyor Chain

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CHINAMFG Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CHINAMFG range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

 

 

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
Surface Treatment: Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

trencher chain

What are the environmental considerations when using trencher chains, especially in sensitive areas?

When using trencher chains, especially in environmentally sensitive areas, it is essential to consider and implement measures to minimize potential environmental impacts. Here are the key environmental considerations:

1. Soil Erosion and Sediment Control:

– Trenching can disturb the soil and increase the risk of erosion. Implement erosion control measures, such as sediment barriers and silt fences, to prevent soil runoff into nearby water bodies.

2. Protection of Vegetation:

– Avoid trenching through sensitive vegetation or habitats. If trenching is necessary, take measures to protect existing vegetation and restore disturbed areas after trenching is complete.

3. Spill Prevention and Cleanup:

– Store fuel and lubricants properly, and have spill kits readily available to respond to any accidental spills. Promptly clean up any spills to prevent contamination of soil and water.

4. Avoiding Wetlands and Water Bodies:

– Avoid trenching in or near wetlands and water bodies to prevent disruption of these delicate ecosystems. Obtain necessary permits and approvals if trenching is unavoidable in such areas.

5. Noise and Vibration:

– Limit noise and vibration levels during trenching operations, especially in areas near residential properties or wildlife habitats.

6. Wildlife Protection:

– Be mindful of wildlife presence in the area and take measures to avoid disturbing or harming them during trenching activities.

7. Restoration and Reclamation:

– After completing trenching work, restore the area to its original condition as much as possible. Replant vegetation and stabilize the soil to promote natural regeneration.

8. Compliance with Regulations:

– Adhere to all local, regional, and national environmental regulations and guidelines related to trenching activities.

9. Consider Alternative Methods:

– In sensitive areas, consider alternative trenching methods that may have lower environmental impacts, such as directional drilling or micro-trenching.

10. Environmental Impact Assessment:

– Conduct an environmental impact assessment before starting trenching projects in sensitive areas. This assessment will help identify potential environmental risks and plan appropriate mitigation measures.

By considering these environmental factors and implementing responsible practices, trencher chain operators can help minimize their impact on sensitive areas and ecosystems, promoting sustainable and environmentally friendly trenching practices.

trencher chain

Are there any training resources or guides available on trencher chain maintenance and operation?

Yes, there are various training resources and guides available to assist with trencher chain maintenance and operation. These resources are valuable for operators, technicians, and maintenance personnel to ensure safe and efficient trenching operations. Here are some common types of training materials and where to find them:

1. Manufacturer’s Manuals:

– Trencher manufacturers typically provide detailed operation and maintenance manuals specific to their trencher models. These manuals cover topics such as chain installation, tensioning, lubrication, troubleshooting, and safety guidelines.

– Manufacturer manuals are usually available in both printed and digital formats and can be obtained directly from the manufacturer’s website or through authorized dealers.

2. Online Training Videos:

– Many trencher manufacturers and industry-related websites offer online training videos. These videos provide visual demonstrations of proper trencher chain maintenance, installation, and operation techniques.

– Online training videos are convenient and accessible, allowing operators to learn at their own pace and review the content as needed.

3. Trencher Safety Courses:

– Some organizations and training institutes offer trencher safety courses that cover various aspects of trencher operation and maintenance, including chain care.

– These courses often include hands-on training, classroom sessions, and safety protocols to ensure operators are well-prepared for trenching tasks.

4. Industry Publications:

– Industry-specific publications, magazines, and websites often feature articles and guides related to trencher chain maintenance and operation.

– These resources may include tips from experts, case studies, and best practices to improve trenching efficiency and reduce downtime.

5. Equipment Rental Companies:

– Equipment rental companies that offer trencher rentals often provide basic training on how to use and maintain the equipment, including the trencher chain.

– Rental companies may have training materials or guides available for customers to reference.

6. In-House Training:

– Some larger construction companies or organizations with a fleet of trenchers may offer in-house training programs for their operators and maintenance staff.

– In-house training can be tailored to specific trencher models and the company’s unique requirements.

Utilizing these training resources and guides can significantly improve the understanding of trencher chain maintenance and operation, leading to safer working conditions, reduced downtime, and enhanced trenching efficiency.

trencher chain

How does a trencher chain differ from other types of chains used in heavy machinery?

A trencher chain differs from other types of chains used in heavy machinery primarily in its design and purpose. Here are the key differences:

1. Cutting Design:

– Trencher Chain: A trencher chain is specifically designed for cutting through soil and other materials to create trenches. It features cutting teeth or blades arranged in a continuous loop to efficiently dig into the ground.

– Other Heavy Machinery Chains: Chains used in other heavy machinery, such as excavators or loaders, may not have cutting teeth but are designed for tasks like lifting, towing, or moving heavy objects.

2. Application:

– Trencher Chain: The primary application of a trencher chain is trenching, which involves digging narrow and deep channels in the ground for various purposes, such as laying utility lines or drainage systems.

– Other Heavy Machinery Chains: Chains used in other heavy machinery serve different functions, such as lifting and moving materials, excavating, and loading.

3. Loop Configuration:

– Trencher Chain: A trencher chain is typically designed in a loop configuration to form a continuous cutting edge. This design enables smooth and continuous trenching operations.

– Other Heavy Machinery Chains: Chains used in other heavy machinery may have different configurations based on their specific functions and applications.

4. Teeth or Blades:

– Trencher Chain: The cutting teeth or blades on a trencher chain are sharp and robust, specifically suited for cutting through the ground and various materials encountered during trenching.

– Other Heavy Machinery Chains: Chains used in other heavy machinery may not have sharp teeth or blades, as their purpose is not for cutting into materials.

5. Size and Shape:

– Trencher Chain: Trencher chains come in various sizes and shapes, depending on the trenching machine and the required trench dimensions.

– Other Heavy Machinery Chains: Chains used in other heavy machinery also come in different sizes and configurations, tailored to the specific needs of the equipment and its intended applications.

Overall, the primary difference lies in the design, function, and application of the trencher chain, which is uniquely suited for trenching tasks in construction and landscaping projects.

China factory Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field  China factory Industrial & Agricultural Conveyor Chains 120-5 Transmission Roller Chains for Oil Field
editor by CX 2023-12-11

China OEM Stainless Steel 16ass-3 Triplex Transmission Parts Short Pitch Roller Chains

Product Description

Chain No. Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness
t/Tmax
mm
Transverse pitch
Pt
mm
Breaking load

Q
kN/lbf

Weight per meter
q
kg/m
Lmax
mm
Lcmax
mm
16ASS-3 25.4-0-0. p. 211. Retrieved 17 May 2-0-0. p. 86. Retrieved 30 January 2015.
 Green 1996, pp. 2337-2361
 “ANSI G7 Standard Roller Chain – Tsubaki Europe”. Tsubaki Europe. Tsubakimoto Europe B.V. Retrieved 18 June 2.
External links
 Wikimedia Commons has media related to Roller chains.
The Complete Xihu (West Lake) Dis. to Chain
Categories: Chain drivesMechanical power transmissionMechanical power control

WHY CHOOSE US 

1.     Reliable Quality Assurance System
2.     Cutting-Edge Computer-Controlled CNC Machines
3.     Bespoke Solutions from Highly Experienced Specialists 
4.     Customization and OEM Available for Specific Application
5.     Extensive Inventory of Spare Parts and Accessories
6.     Well-Developed CHINAMFG Marketing Network 
7.     Efficient After-Sale Service System

Standard or Nonstandard: Standard, Standard
Application: Textile Machinery, Garment Machinery, Electric Cars, Motorcycle, Food Machinery, Agricultural Machinery, Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing, Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

trencher chain

What materials are used to manufacture trencher chains, and how do they impact their durability?

Trencher chains are typically manufactured using high-quality materials to ensure durability and performance in demanding trenching conditions. The choice of materials significantly impacts the chain’s durability and overall lifespan. Here are the common materials used to manufacture trencher chains and their impact on durability:

1. High-Quality Steel:

– High-quality steel, such as alloy or carbon steel, is commonly used for the chain’s main body and links. Steel provides excellent strength and resistance to wear, making the chain durable and suitable for various soil types.

2. Carbide:

– Carbide is a hard and tough material often used to manufacture cutting teeth or blades on trencher chains. Carbide cutting teeth offer exceptional wear resistance and longevity, making them ideal for trenching in abrasive and rocky soils.

3. Hardened Steel:

– Some trencher chains feature hardened steel cutting teeth or blades. Hardening the steel enhances its toughness and wear resistance, improving the chain’s durability in challenging trenching conditions.

4. Heat Treatment:

– Heat treatment is applied to certain components of the trencher chain to enhance their strength and durability. It involves heating the material to specific temperatures and then cooling it at a controlled rate to achieve the desired properties.

5. Coatings and Treatments:

– Some trencher chains may have specialized coatings or treatments applied to their surfaces. These coatings, such as chrome plating or zinc-nickel coating, provide additional protection against corrosion and wear, further extending the chain’s durability.

Impact on Durability:

The use of high-quality materials in trencher chain manufacturing ensures that the chain can withstand the rigors of trenching in various soil conditions. Carbide or hardened steel cutting teeth offer superior wear resistance, reducing the need for frequent replacements and ensuring longer-lasting performance.

The combination of heat treatment and specialized coatings enhances the chain’s overall durability and helps prevent premature wear and corrosion. These features contribute to a longer lifespan for the trencher chain, reducing downtime and maintenance costs in the long run.

When selecting a trencher chain, consider the materials used in its construction to ensure that it is well-suited for the specific trenching applications and soil conditions you will encounter.

trencher chain

Are there any specialized trencher chain lubricants or maintenance products that improve longevity and efficiency?

Yes, there are specialized trencher chain lubricants and maintenance products designed to enhance the longevity and efficiency of trencher chains. These products help reduce wear and friction on the chain components, ensuring smooth operation and extending the chain’s lifespan. Here are some common products:

1. Trencher Chain Lubricants:

– Trencher chain lubricants are specially formulated to reduce friction between the chain components, such as links and cutting teeth. They create a protective film that minimizes wear and heat buildup during trenching.

– Lubricating the trencher chain regularly with the appropriate lubricant improves its efficiency by reducing power consumption and increasing cutting performance.

2. Chain Dressing:

– Chain dressings or chain wax are applied to trencher chains to provide a protective coating against dirt, moisture, and debris. This coating helps prevent corrosion and keeps the chain clean, leading to improved longevity and reduced maintenance needs.

3. Chain Tighteners:

– Chain tighteners or tensioners are used to maintain the correct tension on the trencher chain. Proper tension is crucial for efficient trenching and prevents unnecessary stress on the chain and machine components.

4. Cutting Tooth Sharpeners:

– Cutting tooth sharpeners help maintain the sharpness of the trencher chain’s cutting teeth. Keeping the teeth sharp ensures efficient trenching and reduces the strain on the machine.

5. Anti-Corrosion Products:

– Anti-corrosion products, such as rust inhibitors or coatings, protect the trencher chain from rust and oxidation. These products are especially useful when trenching in wet or corrosive soil conditions.

6. Degreasers and Cleaners:

– Degreasers and cleaners are used to remove built-up dirt, grease, and debris from the trencher chain. Keeping the chain clean prevents premature wear and optimizes its performance.

It is essential to use maintenance products recommended by the trencher chain manufacturer or supplier to ensure compatibility and effectiveness. Regular maintenance and the use of specialized products can significantly improve the trencher chain’s efficiency, reduce downtime, and prolong its overall lifespan, providing cost savings and improved trenching performance in the long run.

trencher chain

What are the different types of trencher chains available, and when should each be used?

There are several types of trencher chains available, each designed for specific trenching applications and soil/terrain conditions. Here are the common types and their recommended uses:

1. Standard Trencher Chain:

– This type of chain is suitable for general-purpose trenching in relatively soft to moderately compacted soils. It is commonly used in residential or light commercial projects for laying utility lines and irrigation systems.

2. Rock Trencher Chain:

– A rock trencher chain is designed for challenging and rocky terrain. It features heavy-duty cutting teeth that can handle hard and abrasive materials, making it ideal for trenching in rocky soils and compacted surfaces.

3. Clay Trencher Chain:

– This chain type is specifically designed for trenching in clay-heavy soils. It features specialized cutting teeth or blades that can efficiently cut through and handle sticky clay without clogging.

4. Heavy-Duty Trencher Chain:

– A heavy-duty trencher chain is built to withstand tough conditions and long hours of trenching. It is commonly used in large-scale construction and infrastructure projects, as well as in challenging terrain.

5. Micro Trencher Chain:

– A micro trencher chain is used for creating narrow trenches, typically for applications such as fiber optic cable installations. It is ideal for minimizing ground disruption in urban areas and requires less restoration work after trenching.

6. Hydraulic Trencher Chain:

– Hydraulic trencher chains are designed for use with hydraulic trenchers. They offer excellent cutting performance and versatility in various soil conditions and can be adjusted to create trenches of different widths and depths.

7. Skid Steer Trencher Chain:

– Skid steer trencher chains are used with skid steer loaders to dig trenches for various utility installations and landscaping projects. They are compact and maneuverable, making them suitable for tight spaces and smaller-scale trenching.

When choosing a trencher chain, consider the specific soil and terrain conditions you will be working in, as well as the depth and width of the required trench. Selecting the appropriate trencher chain for the job will ensure efficient and successful trenching operations.
China OEM Stainless Steel 16ass-3 Triplex Transmission Parts Short Pitch Roller Chains  China OEM Stainless Steel 16ass-3 Triplex Transmission Parts Short Pitch Roller Chains
editor by CX 2023-12-08

China OEM Simplex Stainless Steel 12b Ss-1 Short Pitch Roller Chains and Bush Chain

Product Description

Chain No. Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth

h2 max
mm

Plate thickness

t/Tmax
mm

Breaking load

Q
kN/lbf

Weight per meter
q
kg/m
Lmax
mm
Lcmax
mm
12BSS-1 19.050 12.07 11.68 5.72 22.50 24.20 16.00 1.85 18.5/4205 1.16

*Bush chain:d1 in the table indicates the external diameter of the bush
*Straight side plates
Stainless steel chains are suitable for corrosive conditions involving food,chemicals pharmaceuticals,etc.and also suitable for high and low temperature conditions.

Roller chain

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient[1] means of power transmission.

Though CHINAMFG Renold is credited with inventing the roller chain in 1880, sketches by Leonardo da Vinci in the 16th century show a chain with a roller bearing.

Construction of the chain
Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

Lubrication
Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CHINAMFG paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

Variants in design

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.
Chain strength

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

Chain standards

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25.

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

See also

 
Company Certificates

Why Choose Us
1.     Reliable Quality Assurance System
2.     Cutting-Edge Computer-Controlled CNC Machines
3.     Bespoke Solutions from Highly Experienced Specialists 
4.     Customization and OEM Available for Specific Application
5.     Extensive Inventory of Spare Parts and Accessories
6.     Well-Developed CHINAMFG Marketing Network 
7.     Efficient After-Sale Service System

 

Standard or Nonstandard: Standard, Standard
Application: Textile Machinery, Garment Machinery, Electric Cars, Motorcycle, Food Machinery, Agricultural Machinery, Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing, Polishing
Structure: Roller Chain, Rotransmission Chain, Pulling Chain, Driving Chain
Material: Stainless Steel, Rubber
Type: Bush Chain, Transmission Chain, Pulling Chain, Driving Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

trencher chain

What materials are used to manufacture trencher chains, and how do they impact their durability?

Trencher chains are typically manufactured using high-quality materials to ensure durability and performance in demanding trenching conditions. The choice of materials significantly impacts the chain’s durability and overall lifespan. Here are the common materials used to manufacture trencher chains and their impact on durability:

1. High-Quality Steel:

– High-quality steel, such as alloy or carbon steel, is commonly used for the chain’s main body and links. Steel provides excellent strength and resistance to wear, making the chain durable and suitable for various soil types.

2. Carbide:

– Carbide is a hard and tough material often used to manufacture cutting teeth or blades on trencher chains. Carbide cutting teeth offer exceptional wear resistance and longevity, making them ideal for trenching in abrasive and rocky soils.

3. Hardened Steel:

– Some trencher chains feature hardened steel cutting teeth or blades. Hardening the steel enhances its toughness and wear resistance, improving the chain’s durability in challenging trenching conditions.

4. Heat Treatment:

– Heat treatment is applied to certain components of the trencher chain to enhance their strength and durability. It involves heating the material to specific temperatures and then cooling it at a controlled rate to achieve the desired properties.

5. Coatings and Treatments:

– Some trencher chains may have specialized coatings or treatments applied to their surfaces. These coatings, such as chrome plating or zinc-nickel coating, provide additional protection against corrosion and wear, further extending the chain’s durability.

Impact on Durability:

The use of high-quality materials in trencher chain manufacturing ensures that the chain can withstand the rigors of trenching in various soil conditions. Carbide or hardened steel cutting teeth offer superior wear resistance, reducing the need for frequent replacements and ensuring longer-lasting performance.

The combination of heat treatment and specialized coatings enhances the chain’s overall durability and helps prevent premature wear and corrosion. These features contribute to a longer lifespan for the trencher chain, reducing downtime and maintenance costs in the long run.

When selecting a trencher chain, consider the materials used in its construction to ensure that it is well-suited for the specific trenching applications and soil conditions you will encounter.

trencher chain

Are there any training resources or guides available on trencher chain maintenance and operation?

Yes, there are various training resources and guides available to assist with trencher chain maintenance and operation. These resources are valuable for operators, technicians, and maintenance personnel to ensure safe and efficient trenching operations. Here are some common types of training materials and where to find them:

1. Manufacturer’s Manuals:

– Trencher manufacturers typically provide detailed operation and maintenance manuals specific to their trencher models. These manuals cover topics such as chain installation, tensioning, lubrication, troubleshooting, and safety guidelines.

– Manufacturer manuals are usually available in both printed and digital formats and can be obtained directly from the manufacturer’s website or through authorized dealers.

2. Online Training Videos:

– Many trencher manufacturers and industry-related websites offer online training videos. These videos provide visual demonstrations of proper trencher chain maintenance, installation, and operation techniques.

– Online training videos are convenient and accessible, allowing operators to learn at their own pace and review the content as needed.

3. Trencher Safety Courses:

– Some organizations and training institutes offer trencher safety courses that cover various aspects of trencher operation and maintenance, including chain care.

– These courses often include hands-on training, classroom sessions, and safety protocols to ensure operators are well-prepared for trenching tasks.

4. Industry Publications:

– Industry-specific publications, magazines, and websites often feature articles and guides related to trencher chain maintenance and operation.

– These resources may include tips from experts, case studies, and best practices to improve trenching efficiency and reduce downtime.

5. Equipment Rental Companies:

– Equipment rental companies that offer trencher rentals often provide basic training on how to use and maintain the equipment, including the trencher chain.

– Rental companies may have training materials or guides available for customers to reference.

6. In-House Training:

– Some larger construction companies or organizations with a fleet of trenchers may offer in-house training programs for their operators and maintenance staff.

– In-house training can be tailored to specific trencher models and the company’s unique requirements.

Utilizing these training resources and guides can significantly improve the understanding of trencher chain maintenance and operation, leading to safer working conditions, reduced downtime, and enhanced trenching efficiency.

trencher chain

How do I properly maintain and sharpen a trencher chain for optimal cutting performance?

Proper maintenance and regular sharpening are essential to ensure the trencher chain maintains optimal cutting performance and efficiency. Follow these steps to keep your trencher chain in top condition:

1. Regular Inspections:

– Conduct routine inspections to check for signs of wear, damage, or misalignment. Look for any dull or damaged cutting teeth that need attention.

2. Cleaning:

– Before sharpening, clean the trencher chain thoroughly to remove dirt, debris, and excess grease or oil.

3. Sharpening:

– Use a suitable chain sharpening tool to sharpen the cutting teeth of the trencher chain. Follow the manufacturer’s guidelines for the correct angle and technique.

4. Replace Worn Teeth:

– If any cutting teeth are excessively worn or damaged, replace them with new ones to maintain consistent cutting performance.

5. Check Tension and Alignment:

– Ensure the trencher chain is correctly tensioned and aligned to prevent unnecessary wear and ensure smooth operation.

6. Lubrication:

– Apply appropriate lubrication to the trencher chain to reduce friction and wear between the chain components.

7. Store Properly:

– When not in use, store the trencher chain in a dry and clean environment to prevent rust and damage.

8. Professional Maintenance:

– If you are not familiar with sharpening and maintenance techniques, consider seeking the help of a professional to ensure the trencher chain is properly cared for.

9. Follow Manufacturer’s Guidelines:

– Adhere to the manufacturer’s maintenance recommendations and guidelines to maximize the trencher chain’s lifespan and cutting performance.

Regular maintenance and sharpening will ensure that your trencher chain operates optimally, providing efficient and precise cutting in various soil and terrain conditions. By keeping the chain in good condition, you can avoid unnecessary wear and tear and extend its overall lifespan.

China OEM Simplex Stainless Steel 12b Ss-1 Short Pitch Roller Chains and Bush Chain  China OEM Simplex Stainless Steel 12b Ss-1 Short Pitch Roller Chains and Bush Chain
editor by CX 2023-12-07