China high quality Gl Type Roller Chain Coupling

Product Description

Product Description

Roller chain couplings have the advantages of simple structure, convenient loading and unloading, large torque transmission, and easy operation. However, there is significant wear between the chains, especially during high-speed operation when the radial motion generated by centrifugal force will accelerate their wear. Therefore, it is not suitable for use at high speeds and under impact loads, nor for the connection of vertical shafts.

When designing the overall structure of the coupling, full attention should be paid to the lubrication and dust prevention between the tooth surface and the rollers, and an outer shell should be added. In addition to dust and oil storage, it also has a protective effect. Because if the chain breaks, it may cause personal accidents.

The double row sleeve roller chain coupling has formed a standard (old standard GB6069-85, new standard GB/T 6069-2002). The transmission torque and allowable speed are 4 times and 2 times that of a single row roller chain of the same size, respectively. Because when the chain size is determined, it can accommodate 2 teeth within the width of a single row of sleeve rollers, while a double row can only accommodate 1 tooth, the tooth thickness of a single row is only half of that of a double row. So, the rollers of the double row chain are located in the grooves of the main and driven sprockets, and when subjected to force, they rotate independently without interfering with each other, reducing wear.

Product Parameters


model Nominal torqueTnN·m Allowable speed(n)
Axis hole diameter
Axis hole length Chain number chain
Number of teeth

D b1 S A Dx
kg Transmission inertiakg·m2
Ymodel J1model
No cover installed Installing cover L L1
GL1 40 1400 4500 16 42 06B 9.525 14 51.06 5.3 4.9 70 70 0.40 0.0571
18 42
19 42
20 52 38 4
GL2 63 1250 4500 19 42 06B 9.525 16 57.08 5.3 4.9 75 75 0.70 0.0571
20 52 38 4
22 52 38 4
24 52 38 4
GL3 100 1000 4000 20 52 38 08B 12.7 14 68.88 7.2 6.7 12 85 80 1.1 0.00038
22 52 38 12
24 52 44 12
25 62 6
GL4 160 1000 4000 24 52 08B 12.7 16 76.91 7.2 6.7 95 88 1.8 0.0
25 62 44 6
28 62 44 6
30 82 60
32 82 60
GL5 250 800 3150 28 62 10A 15.875 16 94.46 8.9 9.2 112 100 3.2 0.0571
30 82 60
32 82 60
35 82 60
38 82 60
40 112 84
GL6 400 630 2500 32 82 60 10A 15.875 20 116.57 8.9 9.2 140 105 5.0 0.0058
35 82 60
38 82 60
40 112 84
42 112 84
45 112 84
18 112 84
50 112 84
GL7 630 630 2500 40 112 60 12A 19.05 18 127.78 11.9 10.9 150 122 7.4 0.012
42 112 60
45 112 60
48 112 84
50 112 84
55 112 84
60 142 107
GL8 1000 500 2240 45 112 84 16A 25.40 16 154.33 15.0 14.3 12 180 135 11.1 0.571
48 112 84 12
50 112 84 12
55 112 84 12
60 142 107
65 142 107
70 142 107
GL9 1600 400 2000 50 112 84 16A 25.4 20 186.50 15.0 14.3 12 215 145 20.0 0.061
55 112 84 12


Packaging & Shipping


After Sales Service


If during transportation or if the customer receives the goods, opens the packaging and finds any damage, they can resend a new product to the customer.

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chain coupling

What are the common materials used in chain couplings?

Chain couplings are commonly made from various materials that offer the necessary strength, durability, and wear resistance required for transmitting torque between shafts. The choice of materials depends on factors such as the application requirements, operating conditions, and the specific design of the coupling. Here are some common materials used in chain couplings:

  • Steel: Steel is one of the most widely used materials for chain couplings. It offers excellent strength, toughness, and resistance to wear and fatigue. Carbon steel and alloy steel are commonly used, with alloy steel providing enhanced properties such as higher tensile strength and improved corrosion resistance.
  • Stainless Steel: Stainless steel is chosen for chain couplings when corrosion resistance is a critical requirement. It offers good mechanical properties along with resistance to rust and corrosion, making it suitable for applications in harsh environments or where exposure to moisture or chemicals is present.
  • Cast Iron: Cast iron is occasionally used for chain couplings, particularly in applications where cost-effectiveness and moderate strength are important factors. Cast iron provides good wear resistance and can withstand moderate loads and operating conditions.
  • Bronze: Bronze is utilized in certain specialized chain couplings, especially in applications where self-lubrication and high resistance to corrosion are required. Bronze has good friction properties and can operate in conditions where lubrication may be limited or unavailable.
  • Plastics: In some cases, certain plastics, such as nylon or polyurethane, are used for chain coupling components like chain guides or protective covers. Plastics offer low friction, noise reduction, and resistance to chemicals, making them suitable for specific applications.

It’s important to note that the materials used in chain couplings may vary depending on the specific manufacturer, coupling design, and application requirements. It is recommended to consult the manufacturer’s specifications and guidelines to determine the appropriate materials for a particular chain coupling.

Additionally, in some cases, chain couplings may incorporate a combination of different materials, such as steel for the sprockets and roller chain, and elastomers for the flexible elements. This hybrid construction allows for optimized performance, balancing strength, flexibility, and damping characteristics.

Overall, the selection of materials for chain couplings is crucial to ensure reliable and efficient power transmission while considering factors such as load capacity, operating conditions, and the desired service life of the coupling.

chain coupling

What is the maximum torque capacity of a chain coupling?

The maximum torque capacity of a chain coupling can vary depending on several factors, including the size and design of the coupling, the type and quality of the components used, and the application requirements. It is important to refer to the manufacturer’s specifications and guidelines for the specific chain coupling being used. These specifications typically provide the maximum torque capacity or the maximum allowable torque for the coupling.

The maximum torque capacity is usually expressed in torque units, such as Newton-meters (Nm) or foot-pounds (ft-lb). It represents the maximum amount of torque that the chain coupling can transmit without exceeding its design limits or risking premature failure.

When selecting a chain coupling, it is crucial to consider the torque requirements of the application and choose a coupling with a sufficient torque capacity. Factors such as the power requirements, operating conditions, and misalignment tolerance should be taken into account to ensure that the selected coupling can handle the required torque.

It is important to note that exceeding the maximum torque capacity of a chain coupling can lead to various issues, including accelerated wear, excessive stress on the components, and potential coupling failure. Therefore, it is recommended to always operate the chain coupling within its specified torque limits to maintain its reliability and longevity.

For accurate and precise information regarding the maximum torque capacity of a specific chain coupling, it is necessary to consult the manufacturer’s documentation or contact the manufacturer directly. They can provide detailed information based on the specific design and specifications of the coupling.

chain coupling

What are the disadvantages of chain couplings?

  • Backlash: Chain couplings can exhibit a certain degree of backlash or play due to the clearances between the chain rollers and the sprocket teeth. This can result in reduced precision and accuracy in applications where precise motion control is required.

  • Noise and Vibration: The engagement between the chain and sprockets can generate noise and vibration during operation. This can be problematic in applications where noise reduction is important or where excessive vibration can affect the performance or integrity of the machinery.

  • Maintenance Requirements: While chain couplings are relatively easy to maintain, they still require regular attention. Lubrication of the chain and sprockets is essential to reduce wear and friction. Additionally, periodic inspection and adjustment of chain tension are necessary to ensure proper operation. Neglecting maintenance tasks can lead to premature wear, decreased efficiency, and potential coupling failure.

  • Space and Weight: Chain couplings occupy a certain amount of space due to the presence of sprockets and the length of the chain. In applications with space constraints, the size of the coupling may limit its usability. Additionally, the weight of the coupling components can be a consideration in applications where weight reduction is important.

  • Limitations in High-Speed Applications: Chain couplings may have limitations in high-speed applications. At high rotational speeds, the centrifugal forces acting on the chain and sprockets can increase, potentially causing stress and reducing the efficiency of the coupling. In such cases, alternative coupling designs, such as gear or flexible shaft couplings, may be more suitable.

  • Wear and Service Life: Like any mechanical component, chain couplings are subject to wear over time. The chain and sprockets can experience gradual wear and elongation, requiring eventual replacement. The service life of a chain coupling depends on factors such as the operating conditions, maintenance practices, and the quality of the components used.

While chain couplings offer several advantages, it is important to consider these disadvantages and evaluate their impact based on the specific application requirements. Proper maintenance, periodic inspection, and careful consideration of design factors can help mitigate these disadvantages and ensure optimal performance and longevity of the chain coupling.

China high quality Gl Type Roller Chain Coupling  China high quality Gl Type Roller Chain Coupling
editor by CX 2024-04-19


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