China wholesaler 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

How does the chain size affect the performance of a chain coupling?

The chain size has a significant impact on the performance of a chain coupling. The size of the chain refers to the physical dimensions of the roller chain used in the coupling, including the pitch, roller diameter, and width. Here are some key ways in which the chain size affects the performance of a chain coupling:

  • Torque Capacity: The chain size directly affects the torque capacity of the chain coupling. Larger chain sizes are generally capable of transmitting higher torque loads due to their increased contact area and greater strength. Smaller chain sizes, on the other hand, have lower torque capacities and are suitable for applications with lighter torque requirements.
  • Speed Capability: The chain size also influences the speed capability of the chain coupling. Larger chains can typically handle higher rotational speeds without experiencing issues such as excessive vibration or centrifugal forces. Smaller chain sizes may have limitations in terms of maximum allowable speeds and may not be suitable for high-speed applications.
  • Service Life: The selection of an appropriate chain size is crucial for achieving the desired service life of the chain coupling. If the chain is undersized for the application, it may experience premature wear, fatigue, and ultimately fail under the operating conditions. Conversely, using an oversized chain may result in unnecessary costs, increased weight, and reduced efficiency.
  • Space Constraints: The physical size of the chain can also impact the overall dimensions and installation requirements of the chain coupling. Larger chain sizes may require more space for proper installation, including clearance for the chain links and sprockets. In applications with limited space, choosing a smaller chain size may be necessary to ensure proper fit and operation.
  • Compatibility: The chain size should be compatible with the sprockets and other components of the chain coupling. It is important to ensure that the chain and sprockets are designed to work together, with matching dimensions and tooth profiles. Using an incompatible chain size can lead to poor engagement, increased wear, and reduced overall performance.

When selecting the appropriate chain size for a chain coupling, it is essential to consider the specific requirements of the application, including torque, speed, space limitations, and compatibility with other components. Consulting the manufacturer’s recommendations and guidelines is crucial to ensure the optimal chain size selection for the desired performance, reliability, and longevity of the chain coupling.

chain coupling

What are the key components of a chain coupling?

A chain coupling consists of several key components that work together to transmit power and accommodate misalignments. Here are the main components of a chain coupling:

  • Sprockets: Sprockets are the toothed wheels that engage with the chain. They are typically made of steel or other durable materials and have specially designed teeth that mesh with the chain rollers. The sprockets provide the driving and driven connections, transmitting torque from one shaft to another.
  • Roller Chain: The roller chain is a series of interconnected links with rollers between them. It is looped around the sprockets, with the rollers engaging with the sprocket teeth. The roller chain transfers the rotational motion from the driving sprocket to the driven sprocket, allowing power transmission between the shafts.
  • Connecting Pins: Connecting pins are used to join the links of the roller chain together, forming a continuous loop. These pins are inserted through the pin holes in the chain links and secured with retaining clips or other fasteners. They ensure the integrity and strength of the chain.
  • Bushings or Bearings: Bushings or bearings are used to support the shafts and allow them to rotate smoothly within the chain coupling. They are typically inserted into the bores of the sprockets and provide a low-friction interface between the shaft and the coupling components.
  • Guard or Cover: In some chain couplings, a guard or cover is added to enclose the sprockets and chain. This serves as a protective barrier, preventing contact with moving parts and reducing the risk of accidents or injuries. The guard or cover also helps to contain lubrication and protect the chain from contaminants.
  • Lubrication: Lubrication is essential for the smooth operation and longevity of a chain coupling. Proper lubrication reduces friction, wear, and noise. Lubricants, such as chain oil or grease, are applied to the chain and sprockets to minimize frictional losses and prevent premature wear.

These components work together to provide a reliable and efficient power transmission in chain couplings. The sprockets engage with the roller chain, and as one sprocket rotates, it drives the chain, causing the other sprocket and the connected shaft to rotate. The roller chain and its components, along with lubrication, allow for flexibility and compensation of misalignment between the shafts.

chain coupling

What are the applications of chain couplings?

Chain couplings are widely used in various industrial applications where the reliable transmission of power between rotating shafts is required. They offer flexibility, torque capacity, and misalignment compensation, making them suitable for a range of machinery and equipment. Here are some common applications of chain couplings:

  • Conveyors: Chain couplings are commonly used in conveyor systems to transfer power from drive motors to conveyor belts, allowing for the movement of materials in industries such as manufacturing, mining, and logistics.
  • Mixers and Agitators: Chain couplings find application in mixers and agitators, which are used in industries such as food and beverage, chemical processing, and wastewater treatment. They enable the rotation of mixing blades or paddles, facilitating the blending or agitation of substances.
  • Pumps: Chain couplings are utilized in pump systems to connect the pump shaft to the motor shaft. They enable the transfer of rotational energy, allowing pumps to move fluids in applications like water supply, irrigation, and industrial processes.
  • Crushers and Crushers: In industries such as mining, construction, and material handling, chain couplings are employed in crushers and crushers to transmit power from electric motors or engines to the crushing or grinding mechanisms, enabling the size reduction of materials.
  • Industrial Drives: Chain couplings are used in various industrial drives, including machinery for manufacturing, packaging, and material handling. They provide a reliable connection between motor-driven components such as gearboxes, rollers, and pulleys.
  • Fans and Blowers: Chain couplings find application in fan and blower systems, which are used for ventilation, cooling, and air circulation in HVAC systems, industrial processes, and power plants. They facilitate the rotation of fan blades, enabling the movement of air or gases.
  • Machine Tools: Chain couplings are utilized in machine tools such as lathes, milling machines, and drills, where the coupling connects the motor or drive spindle to the tool head or workpiece. They enable the transmission of rotational power for machining operations.
  • Textile Machinery: Chain couplings are used in textile machinery for processes like spinning, weaving, and knitting. They connect various components such as motors, spindles, and rollers, enabling the movement and processing of textile fibers.

These are just a few examples of the applications of chain couplings. Their versatility and ability to transmit high torque loads while accommodating misalignment make them suitable for a wide range of industries and machinery where the reliable and efficient transmission of power between rotating shafts is essential.

China wholesaler Gl Type Roller Chain Coupling  China wholesaler Gl Type Roller Chain Coupling
editor by CX 2024-05-02


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