top of page
WR.png

BR Wire Ring (Earless Internal Retaining Ring｜Sanshu BR Series)

Product Overview
The BR-type retaining ring is an earless internal wire ring, designed to fit into internal grooves of mechanical components. Manufactured in accordance with the Sanshu BR series standard, it features a seamless one-piece spring steel construction without lugs or installation holes.

Its flush-fit profile makes it ideal for use in tight internal spaces or precision mechanisms where protrusions must be avoided.

​​

Product Features

  • Standard Reference: Sanshu BR Series

  • Installation:
    Press-fitted into internal grooves to secure internal components.

  • Design Advantages:
    Earless structure ensures a flush fit with no interference to moving parts.

  • Material Options:

       –Carbon Steel

       –SUS304 Stainless Steel (Corrosion-resistant grade)​​

  • Size Range:
    Ø4mm – Ø100mm (Custom tooling available)

​​​​​

Applications

  • Motor bearing retention and washer positioning

  • Internal locking in precision jigs and fixtures

  • Compact fastening in gearboxes and electronic assemblies

  • Internal groove retention for high-speed or non-protruding components

​​

Customization & Notes​

  • Low-volume orders accepted

  • Support available for model identification and spec confirmation

​

bottom of page