Internal Retaining Ring

An internal retaining ring is a circlip that fits into a bore. It holds parts onto a shaft or inside a housing.

An internal retaining ring sits in a groove in a bore and holds a bearing or other part in place. It is compressed to fit into the bore and springs out into the groove. Internal retaining rings are usually fitted and removed with circlip pliers.

This kind of ring is often made in stainless steel. Stainless steel gives good corrosion resistance and spring properties. It can be used in many 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 or a mill test certificate if you need to verify the material. On receipt, check the ring for correct diameter and thickness. Look for damage such as cracks or deformation.