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Shaft couplings: Types and applications

Publication date: 
June 2002
Ken Gralow, Gray Electric Co.
Type of media: 

Shaft couplings are devices that connect two rotating shafts together. They efficiently transfer motion and power from one shaft to the other without adversely impacting either piece of rotating equipment. They should transfer constant and peak torques, be easily removed and replaced, and allow for separation of the coupled equipment. Although shaft couplings come in many shapes and configurations, they basically fall into one of two major categories: rigid (or solid) and flexible couplings.