What is the retaining ring

A fixing ring is a type of fastener that fixes a component or component to a shaft or housing/hole during installation - usually in a groove - for one-time use only. After installation, the exposed part serves as the shoulder to secure specific components or components. The circlip is a fixed ring.
Circular push-in retaining rings can be installed in applications without grooves.
Retaining rings are usually made of carbon steel, stainless steel, or beryllium copper alloy, and may undergo various aesthetic and anti-corrosion treatments depending on the type of usage environment.