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Shaft couplings are used to couple or attach two shafts together, typically in an assembly where one shaft rotates and drives the other shaft -- for example, if a motor were to drive a pump, there would be a coupling between the two shafts.

Shaft couplings can be rigid (accommodating no misalignment) or flexible (accommodating some angular and/or radial misalignment of the two shafts). More information on various types of couplings is available here:

www.oepcouplings.com

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Q: What are couplings used for?
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