Circlips Washer

• Product Introduction

• Standard Name: Circlip / Retaining Ring.

• Common Names: Retaining Ring, Retaining Collar, E-Ring, C-Ring.

• Product Definition: An open elastic retaining ring installed in shafts or bore grooves to restrict axial movement of components. It is not a traditional washer but an axial retaining device. Common types include internal circlips (installed in bores) and external circlips (installed on shafts).

Circlips Washer Key Features

• Open Ring Design: C-shaped or E-shaped opening structure for easy installation/removal using

  specialized pliers. It snaps into the groove of a shaft or hole for axial positioning.

• Various Types: External (on the shaft), Internal (in the hole), E-clip (lightweight), Beveled, etc.

• Materials and Strength: Commonly made of carbon steel or stainless steel, high elasticity and fatigue

  resistance; conforms to DIN 471/472, ASME B18.27, and other standards.

• Various Specifications: Diameter 3mm-400mm, thickness 0.4mm-10mm, usually zinc-plated or phosphated.

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

Working Principle

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

  shaft/hole.

• Elastic Recovery: After release, the ring elastically recovers its diameter, tightly snapping into the groove

  and providing axial support.

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

• Load Distribution: Evenly distributes axial forces 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/bore fixing saves assembly space.