Bowed Retaining Rings (Circlips)
Engineered to compensate for axial play and tolerance stack-up under operating conditions
What Are Bowed Retaining Rings?
Bowed retaining rings are a spring-loaded variant of tapered section retaining rings (circlips) designed to compensate for axial play, tolerance stack-up, and wear. Unlike flat retaining rings, bowed circlips are preformed with a controlled bow height that introduces axial spring action. When installed in a properly sized groove, the bow deflects under load and applies continuous force against the retained components, functioning much like wave spring but in a retaining ring form.
Manufactured from spring-grade materials and heat-treated for elastic performance, bowed rings maintain contact force under load and return to their original bow height when unloaded. Proper groove design is critical, as it must accommodate both the ring’s thickness and bow height, while also providing sufficient deflection travel for endplay compensation.
Rotor Clip Bowed Retaining Rings
Application engineering support is available to assist with selecting the appropriate configuration based on groove dimensions, load conditions, and assembly requirements.
See available bowed retaining ring styles and configurations below.
Bowed Retaining Ring Features
Explore the key functional characteristics of Rotor Clip bowed retaining rings below.
| Feature | Bowed Retaining Rings |
| Function | Retention with integrated spring action |
| Load Behavior | Maintains continuous axial preload during operation |
| Operating Principle | Bow of ring acts as an integrated spring element |
| Endplay Control | Eliminates endplay through controlled deflection |
| Vibration Response | Reduces vibration and chatter through constant contact force |
| Tolerance Compensation | Accommodates wear and stack-up over service life |
| Groove Design | Requires additional groove width for bow height and deflection |
| Assembly Impact | Can replace separate spring components in compact designs |
| Configurations | Internal (housing or bore) BHO and external (shaft) BSH |
Bowed Retaining Ring Materials and Finishes
Standard materials for bowed circlips include carbon steel and stainless steel. Specialty alloys such as beryllium copper and phosphor bronze are also available for applications that require enhanced performance or resistance to challenging environments.
Bowed Circlip FAQs
A bowed retaining ring includes a built-in axial bow that acts as a spring. This allows it to apply continuous force against the retained component, unlike a standard circlip, which does not provide preload.
You should use bowed rings when endplay compensation or preload is needed to manage tolerance stack-up or vibration in an application.
Yes. bowed rings maintain preload to reduce chatter. Selection depends on whether rigidity or compliance is required.
Yes. Rotor Clip offers full customization of bowed retaining rings, including modifications to bow height, material, finish, and end configuration. Whether you need a non-standard size, an exotic alloy, or a modified geometry, our engineering team will collaborate with you from prototype through production.