Retaining ring

A snap ring or groove ring, often known by a manufacturer or a Seeger ring, is a machine element for axially securing the position of pins in holes or by components such as rolling bearings, on a shaft or axis.

Accordingly, there are internal retaining rings for a hole mounting (with inwardly pointing ends ) and external retaining rings for shaft mounting (with outward-facing ends ).

These rings belong to the standard parts. The encountered in machine rings are standardized according to DIN 471 and DIN 472 for shaft grooves for Bohrungsnuten.

In the simplest case, a retaining ring is bent from round wire and the ring joint angled in twice for compressing the annular gap in the assembly by snap ring pliers. The standardized according to DIN 471 and DIN 472 execution is stamped as a flat ring and ground and has two holes on the disassembly and assembly using a special circlip pliers.

A retaining ring is required to position it a groove. This is first inserted into a shaft from the outside, piercing shot into a hole from the inside or milled.

An alternative to the retaining ring of the lamellar ring which can also be used for grooves of holes and shafts. Here you do not need circlip pliers for assembly or disassembly.