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Coupling Guide

Coupling Guide

Issue Time:2021/10/08

Coupling Guide

What Is A Coupling

A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end movement or both.

 

In a more general context, a coupling can also be a mechanical device that serves to connect the ends of adjacent parts or objects. Couplings do not normally allow disconnection of shafts during operation, however, there are torque-limiting couplings that can slip or disconnect when some torque limit is exceeded.

 

Coupling in the machine industry is interpreted as “a part that connects two shafts” and is generally called “coupling,” “shaft coupling,” or “joint.” By using a coupling, power can be transmitted, even between axes of different diameters.

 

The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end movement or both. Selection, installation, and maintenance of couplings can lead to reduced maintenance time and maintenance costs.

The role of a coupling (shaft fitting)

lTransmit power

lAbsorb misalignment

lAbsorb vibrations to protect surrounding products

lDo not transfer the heat of the motor, etc., to the driven side.

What Is Shaft Coupling?

A shaft coupling is a mechanical component that connects the driveshaft and driven shaft of a motor, etc., to transmit power. Shaft couplings introduce mechanical flexibility, providing tolerance for shaft misalignment.

 

As a result, this coupling flexibility can reduce uneven wear on the bearing, equipment vibration, and other mechanical troubles due to misalignment.

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