Feature

Top technical considerations when selecting a circlip for your application

It is challenging to develop economical designs that reduce weight, size, raw materials, or labour. Circlips (retaining rings, snap rings) hold components in place whilst accomplishing these goals. Knowing which ring is best for each application contributes to the overall effectiveness and efficiency of a design. Here are some factors to consider when selecting a circlip for your application…

01/08/2025 15:10:18

Groove depth and preparation
Just as a screw needs a correctly tapped hole, retaining rings need properly cut grooves for best performance. Groove walls should be parallel to one another, while being perpendicular to the axis of the shaft or housing.

When a load is applied, it creates a lever action against the loaded groove wall. Under extreme loads, this can lead to deflection of the ring and ultimately to failure, especially when an incorrect ring type is used. Using the correct ring and verifying groove geometry early in the design process is essential.

Read the full article in DPA's August 2025 issue

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.