Tag Archives: heavy duty conveyor chains

China Professional Special Agricultural Double Pitch Conveyor Heavy Duty Straight Sidebar Transmission Metric Series Long Pitch Conveyor Roller Chains with Attachment

Product Description

Special Agricultural Double Pitch Conveyor Heavy Duty Straight Sidebar Transmission Metric Series Long Pitch Conveyor Roller Chains with Attachment

Conveyor roller chains are a power transmission chain commonly used in conveyor systems to move materials and products from 1 point to another. They typically consist of a series of steel rollers connected by pins and plates, forming a continuous chain.

Conveyor roller chains are designed to transmit power from 1 rotating shaft to another, usually with a sprocket or CHINAMFG attached to each shaft. As the chain rotates, the rollers engage with the teeth of the sprocket or gear wheel, causing it to rotate and transmit power to the other shaft.

One of the key advantages of conveyor roller chains is their ability to transmit high levels of power over long distances with minimal loss of efficiency. They are also highly durable and resistant to wear and tear, which can help to extend their lifespan and reduce maintenance costs.

Conveyor roller chains are commonly used in various industrial applications, including assembly lines, packaging machinery, and material handling equipment. They can be found in everything from food processing and bottling plants to automotive manufacturing and mining operations.

Overall, conveyor roller chains are versatile and reliable in many industrial applications, providing efficient and reliable power transmission over long distances with minimal maintenance requirements.

We also provide sprockets.

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Usage: Transmission Chain, Drag Chain, Conveyor Chain, Dedicated Special Chain
Material: Iron
Surface Treatment: Oil Blooming
Feature: Oil Resistant
Chain Size: 1/2"*3/32"
Structure: Roller Chain

heavy duty chain

What are the limitations of using heavy-duty chains in certain applications?

While heavy-duty chains are versatile and well-suited for many applications, there are some limitations to consider when using them in certain scenarios:

1. Weight and Size: Heavy-duty chains can be large and heavy, which may not be suitable for applications with limited space or weight restrictions.

2. Noise and Vibration: Due to their rugged design and high strength, heavy-duty chains can generate more noise and vibration compared to other chain types. This may be a concern in applications where noise reduction is essential.

3. Cost: Heavy-duty chains often come with higher manufacturing costs due to the use of premium materials and precision engineering. As a result, they may not be the most cost-effective solution for some low-load or less demanding applications.

4. Corrosion: While some heavy-duty chains are made from corrosion-resistant materials, others may be more susceptible to rust and corrosion in harsh environments. Proper maintenance and lubrication are essential to extend the chain’s lifespan in such conditions.

5. Operating Speed: Heavy-duty chains may have limitations in terms of operating speed compared to specialized high-speed chains. In applications requiring rapid movement, it’s essential to select the appropriate chain type.

6. Flexibility: The robust design of heavy-duty chains offers strength but may limit flexibility. In applications where the chain needs to traverse complex paths or tight bends, alternative chain designs may be more suitable.

7. Environmental Considerations: Heavy-duty chains may not be the best choice in environments with stringent environmental regulations or where lightweight, eco-friendly alternatives are preferred.

Despite these limitations, heavy-duty chains remain an excellent choice for many demanding applications, providing durability, reliability, and high performance under challenging conditions.

heavy duty chain

How do heavy-duty chains handle wear and tear in continuous operation?

Heavy-duty chains are designed to withstand the rigors of continuous operation and are built to handle significant wear and tear. Several key factors contribute to their ability to endure continuous use:

  • High-Quality Materials: Heavy-duty chains are typically constructed from high-quality alloy or carbon steels. These materials offer excellent strength, toughness, and resistance to wear, making them suitable for continuous operation.
  • Heat Treatment: Many heavy-duty chains undergo heat treatment processes, such as quenching and tempering, to enhance their hardness and durability. Heat treatment helps the chains maintain their structural integrity under prolonged stress.
  • Robust Design: Heavy-duty chains are designed with robust and precise engineering to distribute the loads evenly and minimize stress concentrations. This design feature prevents premature failure due to excessive wear in specific areas.
  • Lubrication: Proper lubrication is crucial in reducing friction and minimizing wear between the chain’s components. Lubricants help to dissipate heat generated during continuous operation and prevent metal-to-metal contact, extending the chain’s lifespan.

In continuous operation, heavy-duty chains are often found in various industrial applications, such as mining, construction, and material handling equipment. These chains are exposed to harsh conditions, heavy loads, and constant movement. The combination of high-quality materials, heat treatment, robust design, and proper lubrication ensures that heavy-duty chains can handle the demanding requirements of continuous operation.

Despite their durability, heavy-duty chains still experience wear over time. Regular maintenance, including inspection, lubrication, and replacement of worn components, is essential to prolong the life of the chain and ensure safe and reliable operation. By following proper maintenance procedures, the risk of unexpected failures and downtime can be significantly reduced, providing more efficient and uninterrupted operation in various industries.

heavy duty chain

What is a heavy-duty chain and what are its applications in various industries?

A heavy-duty chain is a type of chain designed to withstand high loads, severe conditions, and challenging environments. It is constructed using strong and durable materials, making it suitable for applications that require robust and reliable performance. Here are the details of heavy-duty chain and its applications in various industries:

Definition: A heavy-duty chain is characterized by its larger and stronger components compared to standard chains. It is commonly made from materials such as alloy steel, stainless steel, or carbon steel, and is designed to handle heavy loads, high impact forces, and resistance to wear and fatigue.

Applications: 1. Construction and Infrastructure: Heavy-duty chains are extensively used in construction equipment, including excavators, bulldozers, and cranes. They play a vital role in lifting, digging, and moving heavy materials on construction sites.

2. Mining and Extraction: In the mining industry, heavy-duty chains are employed in large mining equipment like draglines, loaders, and shovels. They are crucial for the extraction and transportation of minerals and ores.

3. Material Handling: Heavy-duty chains are found in various material handling applications, such as overhead cranes, hoists, and conveyor systems. They ensure the smooth and safe movement of heavy goods in industrial facilities and warehouses.

4. Agriculture: In agricultural machinery, heavy-duty chains are used in equipment like combines, tractors, and balers. They handle the stresses of harvesting, plowing, and baling operations in the field.

5. Automotive Manufacturing: Heavy-duty chains are utilized in automotive assembly lines for vehicle assembly and production processes.

6. Forestry: Chainsaw machines and logging equipment rely on heavy-duty chains for felling, bucking, and skidding trees in forestry operations.

7. Marine: Heavy-duty chains are applied in marine environments for anchor lines, mooring systems, and towing operations.

8. Aerospace: Heavy-duty chains are used in aircraft for various applications, including flight control mechanisms and landing gear.

9. Energy and Power Generation: Heavy-duty chains are used in power plants for conveying coal and biomass, as well as in wind turbines for pitch and yaw control.

10. Oil and Gas: Heavy-duty chains are employed in oil rigs and drilling equipment for the extraction of petroleum and natural gas.

Overall, heavy-duty chains are essential components in industries that require reliable, robust, and high-load bearing systems. They contribute to the smooth and efficient operation of various machinery, ensuring safety and productivity in diverse industrial applications.

China Professional Special Agricultural Double Pitch Conveyor Heavy Duty Straight Sidebar Transmission Metric Series Long Pitch Conveyor Roller Chains with Attachment  China Professional Special Agricultural Double Pitch Conveyor Heavy Duty Straight Sidebar Transmission Metric Series Long Pitch Conveyor Roller Chains with Attachment
editor by CX 2024-03-29

China best Heavy Duty Series Roller Chains Conveyor Chain Driving Chain

Product Description

Heavy Duty Series Roller Chains  Conveyor Chain Driving Chain
Material: Alloy Steel
Surface Treatment: Shot Peening / Blacking / Blueing

Main Application: Idustry machinery
ANSI CHAIN NO.(A SERIES):35H-1  40H-1  50H-1  60H-1  80H-1  100H-1  120H-1  140H-1  160H-1  200H-1  240H-1  60H-2  80H-2  100H-2  120H-2  140H-2  160H-2  200H-2  60H-3  80H-3  100H-3  120H-3  140H-3  160H-3  200H-3

ANSI CHAIN NO.(B SERIES):04BH  06BH  08BH  10BH  12BH  12BV  12BHF2  16BH  24BH  24BHF2

FAQ:

1. Are you manufacturer or trade Company?

We are a factory founded in 1991 with trade team for international service.

2. What terms of payment you usually use?
T/T 30% deposit and 70% against document, Western Union, L/C at sight

 

3. what is your lead time for your goods?
Normally 45 days after confirmed order. 30 days could be available in low season for some items (during May to July), and 65 days during new year and hot season ( Jan to March).

 

4. Do you attend any Show?
We attend Hannover show in Germany, NMW in Austrilia, Canton fair, PTC, in China and many other special furniture shows.

Usage: Transmission Chain, Transportation Chain
Material: Alloy
Surface Treatment: Heat Treatment
Feature: Heat Resistant
Chain Size:   Custom Made
Structure:   Custom Made
Customization:
Available

|

Customized Request

heavy duty chain

Can heavy-duty chains be used for power transmission in heavy machinery?

Yes, heavy-duty chains are commonly used for power transmission in heavy machinery across various industries. These chains are designed to handle high loads, provide reliable power transmission, and withstand demanding operating conditions.

Heavy machinery, such as construction equipment, mining machinery, and industrial machinery, often require power transmission systems capable of transmitting high torque and operating under harsh environments. Heavy-duty chains are an ideal choice for these applications due to their robust construction and ability to handle heavy loads.

The power transmission process involves the transfer of rotational force or torque from one shaft to another, and heavy-duty chains excel in this role. They typically consist of sturdy components like hardened pins, bushings, and rollers, which contribute to their durability and strength.

Heavy-duty chains are used in various power transmission mechanisms, including gear reduction drives, conveyor systems, and other applications where reliable and efficient power transfer is essential. Additionally, these chains can be found in overhead cranes, hoists, and various lifting equipment used in heavy industrial settings.

When selecting heavy-duty chains for power transmission, factors such as chain size, pitch, tensile strength, and material compatibility should be carefully considered to ensure optimal performance and longevity in the specific heavy machinery application.

In conclusion, heavy-duty chains are well-suited for power transmission in heavy machinery, providing a dependable and robust solution for transmitting high torque and enduring the demanding conditions of heavy industrial operations.

heavy duty chain

Can heavy-duty chains be used in aerospace and aviation equipment?

Heavy-duty chains are not typically used in aerospace and aviation equipment. In these industries, components must meet stringent requirements for weight, precision, and reliability, and heavy-duty chains may not be suitable for such applications.

Aerospace and aviation equipment require lightweight materials to minimize overall weight and ensure fuel efficiency. Heavy-duty chains, designed to handle extreme loads, are usually made of robust but heavy materials, which would be impractical in aerospace and aviation.

In aerospace and aviation, specialized lightweight materials like titanium, aluminum, and composites are commonly used to construct components such as gears, shafts, and bearings. Chains, if needed, would be engineered using lightweight, high-strength materials specifically tailored to meet the industry’s strict performance and weight requirements.

The primary applications for heavy-duty chains are in industries such as construction, mining, agriculture, material handling, and power transmission, where their durability and load-bearing capabilities are essential.

In summary, heavy-duty chains are not commonly utilized in aerospace and aviation equipment due to their weight and other design limitations. Aerospace and aviation components are meticulously engineered to meet the unique demands of these industries, and lightweight, precision materials are the norm for ensuring safe and efficient operations.

heavy duty chain

How do you select the right size and strength for a heavy-duty chain?

Selecting the right size and strength for a heavy-duty chain involves considering several critical factors to ensure optimal performance and safety. Here’s a step-by-step guide to help you make the right choice:

  1. Identify the Application: Determine the specific application for the heavy-duty chain. Different applications may have varying load requirements and environmental conditions.
  2. Calculate the Working Load: Calculate the maximum working load that the chain will be subjected to during operation. This involves considering the weight of the load, shock loads, and any additional forces acting on the chain.
  3. Consider Safety Factor: Apply an appropriate safety factor to the calculated working load to ensure the chain can handle occasional overloads or unexpected stresses. The safety factor typically ranges from 3:1 to 5:1 depending on the application.
  4. Choose the Material: Select the material for the heavy-duty chain based on the environmental conditions it will be exposed to. Common materials include carbon steel for general purposes, stainless steel for corrosion resistance, and alloy steel for increased strength.
  5. Determine the Chain Size: Use the calculated working load and safety factor to determine the required chain size. Refer to chain manufacturer catalogs or engineering handbooks to find chains with suitable load capacities.
  6. Consider Chain Configuration: Decide on the chain configuration, such as single-strand, double-strand, or multi-strand, based on the application’s requirements.
  7. Verify Compatibility: Ensure that the selected heavy-duty chain is compatible with the sprockets or pulleys it will be used with. Proper alignment and fit are crucial for smooth and efficient operation.
  8. Consult with Experts: If in doubt or dealing with complex applications, seek advice from chain manufacturers or industry experts who can recommend the most suitable heavy-duty chain for your specific needs.

It’s essential to follow the manufacturer’s guidelines and specifications when selecting a heavy-duty chain. Proper selection will result in a reliable and long-lasting chain, minimizing downtime and ensuring safety in heavy-duty applications.

China best Heavy Duty Series Roller Chains Conveyor Chain Driving Chain  China best Heavy Duty Series Roller Chains Conveyor Chain Driving Chain
editor by CX 2023-11-01

China Standard Heavy Duty Series Roller Chains Conveyor Chain Driving Chain

Product Description

Heavy Duty Series Roller Chains  Conveyor Chain Driving Chain
Material: Alloy Steel
Surface Treatment: Shot Peening / Blacking / Blueing

Main Application: Idustry machinery
ANSI CHAIN NO.(A SERIES):35H-1  40H-1  50H-1  60H-1  80H-1  100H-1  120H-1  140H-1  160H-1  200H-1  240H-1  60H-2  80H-2  100H-2  120H-2  140H-2  160H-2  200H-2  60H-3  80H-3  100H-3  120H-3  140H-3  160H-3  200H-3

ANSI CHAIN NO.(B SERIES):04BH  06BH  08BH  10BH  12BH  12BV  12BHF2  16BH  24BH  24BHF2

FAQ:

1. Are you manufacturer or trade Company?

We are a factory founded in 1991 with trade team for international service.

2. What terms of payment you usually use?
T/T 30% deposit and 70% against document, Western Union, L/C at sight

 

3. what is your lead time for your goods?
Normally 45 days after confirmed order. 30 days could be available in low season for some items (during May to July), and 65 days during new year and hot season ( Jan to March).

 

4. Do you attend any Show?
We attend Hannover show in Germany, NMW in Austrilia, Canton fair, PTC, in China and many other special furniture shows.

Usage: Transmission Chain, Transportation Chain
Material: Alloy
Surface Treatment: Heat Treatment
Feature: Heat Resistant
Chain Size:   Custom Made
Structure:   Custom Made
Customization:
Available

|

Customized Request

heavy duty chain

What are the common industries that utilize heavy-duty chains?

Heavy-duty chains are extensively used in various industries due to their strength, durability, and ability to handle high loads and challenging environments. Some of the common industries that utilize heavy-duty chains include:

  • Agriculture: Heavy-duty chains are employed in agricultural machinery for tasks like tilling, harvesting, and crop handling.
  • Mining: In mining operations, heavy-duty chains are utilized for conveying materials and in dragline excavators.
  • Construction: Heavy-duty chains play a vital role in construction equipment, such as cranes, excavators, and concrete pumps.
  • Automotive: Heavy-duty chains are used in automobile manufacturing and assembly lines.
  • Forestry: In forestry and timber harvesting equipment, heavy-duty chains are essential for tasks like logging and wood processing.
  • Material Handling: Heavy-duty chains are employed in various material handling applications, including conveyor systems and lifting equipment.
  • Oil and Gas: In the oil and gas industry, heavy-duty chains are utilized in drilling rigs and offshore platforms.
  • Marine: Heavy-duty chains are used in ship mooring and marine lifting equipment.
  • Power Generation: Heavy-duty chains are employed in power plants for handling coal and biomass.
  • Steel and Metal: In steel mills and metal processing facilities, heavy-duty chains are used in furnaces and other equipment.

These are just a few examples, and heavy-duty chains find applications in many other industries as well. The versatility and reliability of heavy-duty chains make them an indispensable component in various industrial settings.

heavy duty chain

What are the environmental considerations when using heavy-duty chains?

When using heavy-duty chains, several environmental considerations should be taken into account to ensure sustainable and responsible operations:

  • Corrosion Resistance: Heavy-duty chains used in outdoor or marine environments should be made from materials with high corrosion resistance to withstand exposure to moisture and other environmental elements.
  • Environmental Impact: Assess the potential environmental impact of using heavy-duty chains in specific applications. Avoid using chains made from materials that may be harmful to the environment.
  • Lubrication: Proper chain lubrication is essential to reduce friction, wear, and noise. Choose environmentally friendly lubricants that are biodegradable and non-toxic.
  • Recyclability: Consider the recyclability of the chain material after its useful life. Opt for chains made from materials that can be recycled or repurposed to reduce waste.
  • Energy Efficiency: Efficient chain design and reduced friction can contribute to energy savings during operation, leading to a lower environmental footprint.
  • Waste Management: Implement appropriate waste management practices for any waste generated during the manufacturing, maintenance, or disposal of heavy-duty chains.

It is essential to select heavy-duty chains that align with sustainable practices and comply with environmental regulations. Additionally, regular maintenance and proper use of the chains can prolong their lifespan and reduce the need for frequent replacements, further benefiting the environment.

By considering these environmental factors, industries can make more informed decisions regarding the use of heavy-duty chains and contribute to a greener and more sustainable future.

“`heavy duty chain

Can heavy-duty chains be used in high-temperature applications?

Yes, heavy-duty chains can be used in high-temperature applications, but their suitability depends on the specific temperature range and the material they are made of. Here are some considerations:

  • Material Selection: Choose a heavy-duty chain made from heat-resistant materials that can withstand the high temperatures. Common materials used for high-temperature applications include alloy steels and stainless steels.
  • Operating Temperature: Check the manufacturer’s specifications to ensure that the chain is rated for the intended operating temperature. Some chains may have temperature limits beyond which their performance may be compromised.
  • Lubrication: Proper lubrication is essential for heavy-duty chains operating in high-temperature environments. High-temperature lubricants are available that can withstand the heat and provide effective lubrication to reduce wear and friction.
  • Thermal Expansion: Consider the potential for thermal expansion of the chain and ensure that there is enough clearance to accommodate any elongation that may occur due to heat.
  • Protection from Corrosion: High temperatures can accelerate the corrosion process, especially in humid or corrosive environments. Using a corrosion-resistant coating or selecting a stainless steel chain can help protect the chain from premature degradation.
  • Regular Inspection: Implement a maintenance schedule to regularly inspect the chain for signs of wear, elongation, or any adverse effects of the high temperature. Timely maintenance can extend the chain’s service life.

It’s important to note that while heavy-duty chains can operate in high-temperature conditions, there are practical limits to their performance. Extremely high temperatures, such as those found in certain industrial processes, may require specialized chains or alternative solutions.

Always consult with chain manufacturers or industry experts to ensure you select the most suitable heavy-duty chain for your specific high-temperature application. Proper selection and maintenance will maximize the chain’s performance and service life under these demanding conditions.

China Standard Heavy Duty Series Roller Chains Conveyor Chain Driving Chain  China Standard Heavy Duty Series Roller Chains Conveyor Chain Driving Chain
editor by CX 2023-10-31

China factory Heavy Duty Series Roller Chains Conveyor Chain Driving Chain

Product Description

Heavy Duty Series Roller Chains  Conveyor Chain Driving Chain
Material: Alloy Steel
Surface Treatment: Shot Peening / Blacking / Blueing

Main Application: Idustry machinery
ANSI CHAIN NO.(A SERIES):35H-1  40H-1  50H-1  60H-1  80H-1  100H-1  120H-1  140H-1  160H-1  200H-1  240H-1  60H-2  80H-2  100H-2  120H-2  140H-2  160H-2  200H-2  60H-3  80H-3  100H-3  120H-3  140H-3  160H-3  200H-3

ANSI CHAIN NO.(B SERIES):04BH  06BH  08BH  10BH  12BH  12BV  12BHF2  16BH  24BH  24BHF2

FAQ:

1. Are you manufacturer or trade Company?

We are a factory founded in 1991 with trade team for international service.

2. What terms of payment you usually use?
T/T 30% deposit and 70% against document, Western Union, L/C at sight

 

3. what is your lead time for your goods?
Normally 45 days after confirmed order. 30 days could be available in low season for some items (during May to July), and 65 days during new year and hot season ( Jan to March).

 

4. Do you attend any Show?
We attend Hannover show in Germany, NMW in Austrilia, Canton fair, PTC, in China and many other special furniture shows.

Usage: Transmission Chain, Transportation Chain
Material: Alloy
Surface Treatment: Heat Treatment
Feature: Heat Resistant
Chain Size:   Custom Made
Structure:   Custom Made
Customization:
Available

|

Customized Request

heavy duty chain

How do heavy-duty chains perform in continuous and intensive operations?

Heavy-duty chains are specifically designed to excel in continuous and intensive operations. These chains are constructed using high-quality materials and precision engineering, making them capable of withstanding heavy loads, shock forces, and continuous use without compromising their performance.

Here are some key factors that contribute to the excellent performance of heavy-duty chains in continuous and intensive operations:

  1. Strength and Durability: Heavy-duty chains are made from materials such as alloy steel, which provides exceptional strength and durability. This enables them to handle the repetitive stresses of continuous use without stretching or deforming.
  2. Heat Treatment: Heavy-duty chains undergo specialized heat treatment processes that enhance their hardness and wear resistance. This heat treatment ensures that the chains can maintain their integrity and performance even under high operating temperatures.
  3. Lubrication: Proper lubrication is essential for heavy-duty chains operating continuously. Lubrication reduces friction between chain components, minimizes wear, and dissipates heat generated during operation.
  4. Robust Design: Heavy-duty chains feature robust and precise designs that optimize their performance. The design includes factors such as pitch, roller diameter, and plate thickness, which are tailored to withstand heavy loads and provide efficient power transmission.
  5. Quality Manufacturing: Heavy-duty chains are manufactured to stringent quality standards, ensuring uniformity and consistency across the chain’s length. This precision manufacturing guarantees that each link is capable of handling the same amount of load.

Due to these features, heavy-duty chains can endure continuous use in demanding applications like mining, construction, and heavy machinery. They provide reliable and consistent performance, reducing downtime and maintenance costs in intensive operations.

heavy duty chain

What are the temperature limits for heavy-duty chains in extreme environments?

Heavy-duty chains are designed to perform well in a wide range of temperatures, but their temperature limits in extreme environments depend on the materials they are made from and the specific application.

Generally, heavy-duty chains can handle temperatures ranging from -20°C to 200°C (-4°F to 392°F) in standard operating conditions. However, in extreme environments, such as foundries, steel mills, or extremely cold regions, special high-temperature or low-temperature chains may be required.

For high-temperature applications, heavy-duty chains made from heat-resistant materials, such as alloy steels or stainless steels, can withstand temperatures above 200°C (392°F) without losing their structural integrity.

On the other hand, in extremely cold environments, heavy-duty chains made from low-temperature materials, like specific grades of carbon steel or nickel-plated chains, can maintain their strength and flexibility at temperatures as low as -40°C (-40°F) and even lower.

When operating heavy-duty chains in extreme environments, it is essential to consider factors such as thermal expansion, contraction, and possible lubrication challenges. Adequate lubrication is crucial to ensure smooth operation and to protect the chains from wear and corrosion caused by temperature variations.

In critical applications with extreme temperature conditions, consulting with chain manufacturers or industry experts can help determine the most suitable heavy-duty chain materials and configurations for the specific environment to ensure optimal performance and longevity.

heavy duty chain

How do heavy-duty chains handle shock loads and dynamic forces?

Heavy-duty chains are designed to handle shock loads and dynamic forces, which are common in industrial applications. They exhibit several features that allow them to withstand these demanding conditions:

  • High Strength: Heavy-duty chains are typically made from high-quality, high-strength materials such as alloy steel or stainless steel. This enhances their ability to withstand sudden and intense forces without deformation or failure.
  • Robust Construction: The construction of heavy-duty chains involves precision manufacturing, resulting in a robust and durable chain design. The links and pins are engineered to resist bending and twisting forces that can occur during shock loads.
  • Heat Treatment: Many heavy-duty chains undergo heat treatment processes to further enhance their strength and hardness. This treatment increases the chain’s resistance to wear and fatigue, ensuring its longevity under dynamic loading conditions.
  • Fatigue Resistance: Heavy-duty chains are designed with fatigue resistance in mind. Their load-bearing components are engineered to distribute stress evenly, reducing the likelihood of fatigue failure when subjected to repetitive dynamic forces.
  • Advanced Engineering: Manufacturers use advanced engineering techniques and simulations to optimize the chain’s design for specific dynamic loads and shock conditions. This ensures that the chain can handle the expected stresses and forces it will encounter during operation.

When using heavy-duty chains in applications with shock loads and dynamic forces, it’s crucial to follow the manufacturer’s guidelines for load capacity, operating conditions, and maintenance. Regular inspections and proper lubrication are essential to detect any signs of wear or damage that could compromise the chain’s performance under these demanding conditions.

China factory Heavy Duty Series Roller Chains Conveyor Chain Driving Chain  China factory Heavy Duty Series Roller Chains Conveyor Chain Driving Chain
editor by CX 2023-10-30

China Hot selling Short-Pitch 64b Precision Roller Chains for Heavy Duty Engineering and Construction Machinery Industrial Mining Conveyor Transmission General Hardware Parts

Product Description

Basic Info

ANSI NO:  

 

64B

Pitch (mm):

 

101.600

Roller Diameter(mm):

 

 

 

63.50

Inner Plate Width (mm):

 

60.96

Pin Diameter(mm):

 

39.40

Plate Thickness (mm):

 

15.00/13.0

Average Tensile Strength:

 

1240KN

Weight / Meter (kgs/m):

 

46.00

Chain Size:

5F, 10F, 5Meters

Certification:

ISO90001, SGS

Trademark:

SMCC or OEM

HS Code:

7315119000

       
       
       

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 CZPT 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 CZPT 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 CZPT 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 CZPT 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.

 

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 CZPT 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 CZPT 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, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing
Structure: Roller Chain
Material: Alloy
Type: Bush Chain
Samples:
US$ 3/Meter
1 Meter(Min.Order)

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Request Sample

Customization:
Available

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heavy duty chain

Can heavy-duty chains be used in overhead or inverted applications?

Yes, heavy-duty chains are suitable for both overhead and inverted applications. Their robust design and high-strength materials make them capable of handling the challenges posed by such applications.

In overhead applications, heavy-duty chains are often used in lifting and hoisting equipment, such as overhead cranes and hoists. These chains are designed to withstand the vertical loads and dynamic forces involved in lifting heavy objects. They are also engineered to resist fatigue and wear, ensuring reliable and safe performance in repetitive lifting tasks.

In inverted applications, heavy-duty chains are used in situations where the chain is required to support loads from below. For example, they can be utilized in conveyor systems where the chain carries materials in an inverted position. In this configuration, the chain must be able to bear the weight of the conveyed materials while navigating turns and inclines.

When using heavy-duty chains in overhead or inverted applications, it’s essential to consider factors such as load capacity, environmental conditions, and maintenance requirements. Proper lubrication and periodic inspections are crucial to ensure the chain’s continued performance and longevity.

Overall, heavy-duty chains offer a reliable and durable solution for a wide range of industrial applications, including both overhead and inverted scenarios.

heavy duty chain

How do heavy-duty chains handle variable speed and torque requirements?

Heavy-duty chains are designed to handle variable speed and torque requirements in various industrial applications. Their robust construction and high-quality materials allow them to withstand the stresses associated with changing operating conditions. Here’s how they handle variable speed and torque:

1. Strength and Durability: Heavy-duty chains are engineered to handle high torque and heavy loads without deformation or failure. Their sturdy construction ensures they can withstand the increased forces that come with variable speed and torque.

2. Lubrication: Proper lubrication is crucial for heavy-duty chains, especially in applications with variable speed and torque. Lubrication reduces friction and wear, preventing premature failure and ensuring smooth operation even under changing conditions.

3. Precision Engineering: Heavy-duty chains are manufactured with precision to ensure uniformity and consistent performance. This precision allows them to maintain their integrity and function reliably in applications with varying speed and torque requirements.

4. Design Flexibility: Some heavy-duty chains come with specific design features that improve their adaptability to variable speed and torque. For instance, certain chain types may have specially designed link plates or components to reduce wear and noise at high speeds.

5. Temperature Resistance: Heavy-duty chains are often capable of handling a wide range of temperatures, which is beneficial in applications with variable environmental conditions.

6. Compatibility with Sprockets: Heavy-duty chains must be paired with compatible sprockets to ensure smooth engagement and prevent excessive wear. Matching the chain and sprocket correctly is crucial for optimal performance under varying speed and torque.

7. Regular Inspection and Maintenance: To ensure heavy-duty chains continue to handle variable speed and torque effectively, regular inspection and maintenance are essential. This includes checking for wear, proper lubrication, and addressing any issues promptly.

Overall, heavy-duty chains are engineered to be robust and reliable, making them well-suited for applications with changing speed and torque requirements. When appropriately selected, installed, and maintained, they contribute to the smooth and efficient operation of various industrial systems.

heavy duty chain

What is a heavy-duty chain and what are its applications in various industries?

A heavy-duty chain is a type of chain designed to withstand high loads, severe conditions, and challenging environments. It is constructed using strong and durable materials, making it suitable for applications that require robust and reliable performance. Here are the details of heavy-duty chain and its applications in various industries:

Definition: A heavy-duty chain is characterized by its larger and stronger components compared to standard chains. It is commonly made from materials such as alloy steel, stainless steel, or carbon steel, and is designed to handle heavy loads, high impact forces, and resistance to wear and fatigue.

Applications: 1. Construction and Infrastructure: Heavy-duty chains are extensively used in construction equipment, including excavators, bulldozers, and cranes. They play a vital role in lifting, digging, and moving heavy materials on construction sites.

2. Mining and Extraction: In the mining industry, heavy-duty chains are employed in large mining equipment like draglines, loaders, and shovels. They are crucial for the extraction and transportation of minerals and ores.

3. Material Handling: Heavy-duty chains are found in various material handling applications, such as overhead cranes, hoists, and conveyor systems. They ensure the smooth and safe movement of heavy goods in industrial facilities and warehouses.

4. Agriculture: In agricultural machinery, heavy-duty chains are used in equipment like combines, tractors, and balers. They handle the stresses of harvesting, plowing, and baling operations in the field.

5. Automotive Manufacturing: Heavy-duty chains are utilized in automotive assembly lines for vehicle assembly and production processes.

6. Forestry: Chainsaw machines and logging equipment rely on heavy-duty chains for felling, bucking, and skidding trees in forestry operations.

7. Marine: Heavy-duty chains are applied in marine environments for anchor lines, mooring systems, and towing operations.

8. Aerospace: Heavy-duty chains are used in aircraft for various applications, including flight control mechanisms and landing gear.

9. Energy and Power Generation: Heavy-duty chains are used in power plants for conveying coal and biomass, as well as in wind turbines for pitch and yaw control.

10. Oil and Gas: Heavy-duty chains are employed in oil rigs and drilling equipment for the extraction of petroleum and natural gas.

Overall, heavy-duty chains are essential components in industries that require reliable, robust, and high-load bearing systems. They contribute to the smooth and efficient operation of various machinery, ensuring safety and productivity in diverse industrial applications.

China Hot selling Short-Pitch 64b Precision Roller Chains for Heavy Duty Engineering and Construction Machinery Industrial Mining Conveyor Transmission General Hardware Parts  China Hot selling Short-Pitch 64b Precision Roller Chains for Heavy Duty Engineering and Construction Machinery Industrial Mining Conveyor Transmission General Hardware Parts
editor by CX 2023-08-17

China Professional High Strength and Wear Resistance Short Pitch Precision 180h-3 Heavy Duty Series Triplex Industrial Conveyor Roller Chains and Bush Chains

Product Description

Heavy Duty Series Triplex Roller Chains & Bush Chains

 

ISO/ANSI

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
180H-3 57.150 35.71 35.48 17.46 215.7 224.8 53.60 8.00 69.16 843/191589 1011.0 44.10

 

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 CZPT 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 CZPT 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 CZPT 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 CZPT 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.

 

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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 CZPT 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, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing
Structure: Roller Chain
Material: Alloy
Type: Short Pitch Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

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heavy duty chain

What are the limitations of using heavy-duty chains in certain applications?

While heavy-duty chains are versatile and well-suited for many applications, there are some limitations to consider when using them in certain scenarios:

1. Weight and Size: Heavy-duty chains can be large and heavy, which may not be suitable for applications with limited space or weight restrictions.

2. Noise and Vibration: Due to their rugged design and high strength, heavy-duty chains can generate more noise and vibration compared to other chain types. This may be a concern in applications where noise reduction is essential.

3. Cost: Heavy-duty chains often come with higher manufacturing costs due to the use of premium materials and precision engineering. As a result, they may not be the most cost-effective solution for some low-load or less demanding applications.

4. Corrosion: While some heavy-duty chains are made from corrosion-resistant materials, others may be more susceptible to rust and corrosion in harsh environments. Proper maintenance and lubrication are essential to extend the chain’s lifespan in such conditions.

5. Operating Speed: Heavy-duty chains may have limitations in terms of operating speed compared to specialized high-speed chains. In applications requiring rapid movement, it’s essential to select the appropriate chain type.

6. Flexibility: The robust design of heavy-duty chains offers strength but may limit flexibility. In applications where the chain needs to traverse complex paths or tight bends, alternative chain designs may be more suitable.

7. Environmental Considerations: Heavy-duty chains may not be the best choice in environments with stringent environmental regulations or where lightweight, eco-friendly alternatives are preferred.

Despite these limitations, heavy-duty chains remain an excellent choice for many demanding applications, providing durability, reliability, and high performance under challenging conditions.

heavy duty chain

How do heavy-duty chains handle variable speed and torque requirements?

Heavy-duty chains are designed to handle variable speed and torque requirements in various industrial applications. Their robust construction and high-quality materials allow them to withstand the stresses associated with changing operating conditions. Here’s how they handle variable speed and torque:

1. Strength and Durability: Heavy-duty chains are engineered to handle high torque and heavy loads without deformation or failure. Their sturdy construction ensures they can withstand the increased forces that come with variable speed and torque.

2. Lubrication: Proper lubrication is crucial for heavy-duty chains, especially in applications with variable speed and torque. Lubrication reduces friction and wear, preventing premature failure and ensuring smooth operation even under changing conditions.

3. Precision Engineering: Heavy-duty chains are manufactured with precision to ensure uniformity and consistent performance. This precision allows them to maintain their integrity and function reliably in applications with varying speed and torque requirements.

4. Design Flexibility: Some heavy-duty chains come with specific design features that improve their adaptability to variable speed and torque. For instance, certain chain types may have specially designed link plates or components to reduce wear and noise at high speeds.

5. Temperature Resistance: Heavy-duty chains are often capable of handling a wide range of temperatures, which is beneficial in applications with variable environmental conditions.

6. Compatibility with Sprockets: Heavy-duty chains must be paired with compatible sprockets to ensure smooth engagement and prevent excessive wear. Matching the chain and sprocket correctly is crucial for optimal performance under varying speed and torque.

7. Regular Inspection and Maintenance: To ensure heavy-duty chains continue to handle variable speed and torque effectively, regular inspection and maintenance are essential. This includes checking for wear, proper lubrication, and addressing any issues promptly.

Overall, heavy-duty chains are engineered to be robust and reliable, making them well-suited for applications with changing speed and torque requirements. When appropriately selected, installed, and maintained, they contribute to the smooth and efficient operation of various industrial systems.

heavy duty chain

What is a heavy-duty chain and what are its applications in various industries?

A heavy-duty chain is a type of chain designed to withstand high loads, severe conditions, and challenging environments. It is constructed using strong and durable materials, making it suitable for applications that require robust and reliable performance. Here are the details of heavy-duty chain and its applications in various industries:

Definition: A heavy-duty chain is characterized by its larger and stronger components compared to standard chains. It is commonly made from materials such as alloy steel, stainless steel, or carbon steel, and is designed to handle heavy loads, high impact forces, and resistance to wear and fatigue.

Applications: 1. Construction and Infrastructure: Heavy-duty chains are extensively used in construction equipment, including excavators, bulldozers, and cranes. They play a vital role in lifting, digging, and moving heavy materials on construction sites.

2. Mining and Extraction: In the mining industry, heavy-duty chains are employed in large mining equipment like draglines, loaders, and shovels. They are crucial for the extraction and transportation of minerals and ores.

3. Material Handling: Heavy-duty chains are found in various material handling applications, such as overhead cranes, hoists, and conveyor systems. They ensure the smooth and safe movement of heavy goods in industrial facilities and warehouses.

4. Agriculture: In agricultural machinery, heavy-duty chains are used in equipment like combines, tractors, and balers. They handle the stresses of harvesting, plowing, and baling operations in the field.

5. Automotive Manufacturing: Heavy-duty chains are utilized in automotive assembly lines for vehicle assembly and production processes.

6. Forestry: Chainsaw machines and logging equipment rely on heavy-duty chains for felling, bucking, and skidding trees in forestry operations.

7. Marine: Heavy-duty chains are applied in marine environments for anchor lines, mooring systems, and towing operations.

8. Aerospace: Heavy-duty chains are used in aircraft for various applications, including flight control mechanisms and landing gear.

9. Energy and Power Generation: Heavy-duty chains are used in power plants for conveying coal and biomass, as well as in wind turbines for pitch and yaw control.

10. Oil and Gas: Heavy-duty chains are employed in oil rigs and drilling equipment for the extraction of petroleum and natural gas.

Overall, heavy-duty chains are essential components in industries that require reliable, robust, and high-load bearing systems. They contribute to the smooth and efficient operation of various machinery, ensuring safety and productivity in diverse industrial applications.

China Professional High Strength and Wear Resistance Short Pitch Precision 180h-3 Heavy Duty Series Triplex Industrial Conveyor Roller Chains and Bush Chains  China Professional High Strength and Wear Resistance Short Pitch Precision 180h-3 Heavy Duty Series Triplex Industrial Conveyor Roller Chains and Bush Chains
editor by CX 2023-07-25