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WR Wire Ring (Earless Shaft Retaining Ring｜For Shaft｜Sanshu WR Series)

The WR Wire Ring is an earless shaft retaining ring designed for installation in shaft grooves. This type of ring is commonly used in precision components to prevent axial movement of parts such as bearings, washers, and sleeves.
The earless design allows for compact installation without protruding tabs, making it ideal for space-constrained or aesthetic-sensitive applications.

Product Features

Standard Compliance: SANSHU WR Series

  • Installation Method: Fits into shaft grooves with no external lugs

  • Design Advantage: Uniform load distribution and flush fit after installation

  • Material Options:
     • Carbon Steel
     • SUS304 Stainless Steel – Corrosion-resistant grade

  • Size Range: Shaft diameters from Φ4mm to Φ170mm (custom tooling available)

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Applications

  • Thrust retention for precision motors or high-speed shafts

  • Axial stop for small mechanism components

  • Internal retention in optical or medical instruments

  • Shaft locking in automotive transmission systems

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Customization & Notes

  • Small quantity orders accepted

  • Specification code matching and custom sizes available upon request

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