Retaining Washer

A retaining washer is a type of retaining ring that fits onto a shaft to hold components in place. It often has a curved shape that grips the shaft when pushed on.

A retaining washer sits in a groove on a shaft and holds a mating part in place along that shaft. It often fits into a machined groove and can be fitted with circlip pliers. Match it to the groove diameter and the shaft it runs on.

Retaining washers are often made in spring steel or stainless steel. Spring steel gives good grip, while stainless steel suits outdoor or corrosive environments.

This is a general guide to checking this kind of part. It says nothing about any supplier's parts.

Ask for a certificate of conformance to confirm the material and dimensions. On receipt, check the washer for cracks, burrs, and correct fit on a sample shaft.