Wave Retaining Ring
Retaining Rings & Clips · wave ring · wavy retaining ring
Definition: A wave retaining ring is a multi-wave ring that seats in a groove and also acts as a spring — retaining a part while taking up end play.
Anatomy & Schematic
■ Ring body■ Opening
Governing standards: Manufacturer specified (no universal standard)
Common Sizes
| Inch | Metric | Head width | Head height |
|---|---|---|---|
| shaft 1/4 | 6 mm | — | — |
| shaft 1/2 | 12 mm | — | — |
| shaft 1 | 25 mm | — | — |
Representative sizes. Full dimensional data lives in the standards listed below.
Grades & Strength
| Grade | Material | Tensile (psi) | Marking |
|---|---|---|---|
| Spring steel | spring steel | — | None |
| Stainless | stainless steel | — | None |
Materials
- Spring steel
- Stainless steel
Pros & Cons
Pros
- Retains and springs in one part
- Takes up tolerance
- Compact
Cons
- Lower thrust than a solid ring
- Needs a groove
- Spring force fixed by design
Typical Uses
- Bearing preload
- End-play take-up
- Automotive transmissions
- Pumps and motors
Alternatives & Related
- Snap Ring — Higher axial retention
- Wave Washer — Spring take-up without retention
Where to Buy
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FAQ
What is a wave retaining ring?
A wavy ring that both retains a part in a groove and applies light spring force to take up end play.
Wave retaining ring vs wave washer?
A wave retaining ring seats in a groove and retains a part; a wave washer only applies spring force.