Spring Circlip

Product Introduction

• Standard Name: Spring Circlip / Retaining Ring.

• Common Names: Spring Retaining Ring, Elastic Retaining Ring, Snap Ring, Open Spring Ring.

• Product Definition: An elastic retaining ring with an opening, manufactured from spring steel. Installed in the groove of a shaft or bore, it utilizes the radial force generated by its elastic deformation to restrict axial movement of components within the shaft or bore. It is a widely used axial positioning fastener.

Key Features of Spring Circlip

• Flexible Opening Design: C-shaped or spiral opening structure with high flexibility, facilitating

  installation/removal using specialized pliers. It snaps into the groove of the shaft or hole for axial

  positioning.

• Various Types: External (on the shaft), Internal (in the hole), E-clip (lightweight), Spiral ring

  (earless design).

• Material and Strength: Commonly made of spring steel or stainless steel, fatigue-resistant and

  vibration-resistant; surface can be phosphated, zinc-plated, or have a natural stainless steel luster,

  providing corrosion resistance.

• Various Specifications: Diameter 3mm-400mm, thickness 0.4mm-10mm, conforming to DIN 471/472,

  ISO 8752, and other standards.

• Advantages: Threadless, quick installation, reusable, space-saving, economical and reliable.

Working Principle

• Groove Installation: Use circlip pliers to compress the opening and insert it into the groove of the

  shaft/hole.

• Elastic Recovery: Upon release, the ring elastically recovers its diameter, tightly locking into the groove

  and providing axial support.

• Positioning and Fixing: Prevents axial movement of components; the open design facilitates disassembly.

• Load Distribution: Distributes axial force evenly and resists vibration; the principle involves elastic

  deformation and mechanical interlocking.

Product Applications

• Mechanical Transmissions: Fixes bearings, gears, or pulleys on shafts to prevent axial movement.

• Automotive Industry: Assembles transmissions, engines, or suspension components.

• Household Appliances: Positions rotors in washing machines, motors, or pumps.

• Precision Instruments: Machine tools, robots, or optical equipment; commonly found in lightweight

  E-type applications.

• Industrial Equipment: Universal shaft/hole fixing, saving assembly space.