External circlips are retaining rings for holding structural parts (e.g. rolling bearings) on shafts.
Circlips are fitted with spring retention in grooves and are suitable for the transmission of axial forces.
Metric external circlip dimensions are shown in the following chart according to the DIN 471 standard.
Some important notes from the DIN 471 standard:
- Material: C 67 , C 75 or Ck 75 spring steel in accordance with DIN 17222.
- Finish: Circlips must be without burr. Circlips are normally supplied corrosion-proof. Details are given in DIN 471.
- Designation: Shaft diameter (nominal dimension) and circlip thickness s (Ex: Circlip DIN 471 - 40 x 1,75)