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Chain Couplings

Chain couplings are utilized to transmit power between two shafts. Generally, chain couplings will be installed off the end of a motor or reducer (gearbox) and utilized to connect to a machine for efficient power transmission. A complete chain coupling consists of two hubs (or sprockets), one coupling chain, which appears similar to a strand of double roller chain and a cover. Not all applications will utilize a cover, however for both safety and coupling life they are recommended. Chain couplings are normally utilized in low speed, high torque applications and allow for 2 degrees misalignment between shafts. Chain couplings are considered an economical way to transmit power between shafts. Please contact Bearing Service to help provide or design in the right coupling for your application.

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Rigid Couplings

Rigid couplings are a type of coupling that should only be utilized when shafts are precisely in line. A rigid coupling is only suitable for shafts in close alignment or held in alignment. If not aligned, torque will transfer to the shafts and bearings and likely cause premature failure. Unlike most other types of couplings, there is no flexible element in a rigid coupling.

Jaw Couplings

A jaw coupling is a type of coupling designed to transmit torque while damping system vibrations, which protects other components from damage. Jaw couplings are considered the most popular couplings utilized in industry for relatively small shaft sizes.

Grid Couplings

Grid couplings use two slotted hubs with a steel grid running between them to transmit torque. Grid couplings are available in horizontal and vertical styles. The grid coupling flexes by allowing the grid to slide along the slots in the hubs. Grid couplings can only accommodate 1/3° misalignment and transmit torque from 422 in-lbs to 2,700,000 in-lb (3,656,555 Nm).


One of the components that go into a roller chain coupling is the chain itself. The roller chains we supply are manufactured using components that have been heat-treated, shot peened, and hardened for maximum strength and durability. Typically, a coupling chain is a double-row roller chain that is ANSI size #40 – #120, then supplied as a certain pitch length based upon how large of a coupling you need. The chart below shows the standard stock sizes of coupling chains, but additional sizes are available upon request.

Servo Coupling

Rotating shaft-driven mechanical components are commonly used in all forms of machinery that perform the various processes and functions of modern industry.

  • Shaft misalignment will place stresses on shafts and related parts of the assembly such as bearings, which can result in early failure of both.
  • Shaft ends can be misaligned radially or angularly, exhibit axial displacement, or experience a combination of all three.
  • Drive couplings can be used to compensate for shaft misalignment, whether the misalignment is an intentional or an unintentional part of the design.

Industrial Couplings

Industrial couplings keep your equipment running properly. Couplings are key to preventing too much torque, keeping power shafts aligned, and adjusting for variations inherent in any power transfer. From managing power transition to breaking off connections to prevent damage, your couplings are pivotal to keeping your equipment operating optimally.We are recognized distributors for top manufacturers across the country. For coupling sales and service, our customer have come to rely on EPT. EPT supplies a wide variety of industrial couplings that are successfully used on a plethora of applications for various industries. 

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Chain couplings from XINLAN can transmit relatively high torques in a minimum of space. Consisting of two sprockets, a double-strand roller chain and a coupling cover, a chain coupling unit can connect two shafts, a reducer or a motor directly to a machine to help deliver efficient power transmissions. Find a variety of options here. Shop XINLAN today for chain coupling components including sprockets, chains and coupling covers.

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Roller chain couplings are extremely simple but provide a compact and flexible coupling that is suitable for an extremely wide range of applications. Because of the design, the torque is distributed throughout the roller chain and sprocket teeth so there is an even amount of torque distributed throughout the coupler when in motion. Another good thing about a roller chain coupling is that the sprockets and chain produce a slight clearance, which means that absolute shaft alignment is not requited for the coupling to function, however it is highly recommended to have the shafts completely aligned, if possible.

Chain couplings from XINLAN can transmit relatively high torques in a minimum of space. Consisting of two sprockets, a double-strand roller chain and a coupling cover, a chain coupling unit can connect two shafts, a reducer or a motor directly to a machine to help deliver efficient power transmissions. Find a variety of options here. Shop XINLAN today for chain coupling components including sprockets, chains and coupling covers.

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