A DIN 471 circlip is a standardized external retaining ring (snap ring) used to axially locate or retain components on a shaft. It’s the German (DIN) standard designation for the common C-shaped steel rings that snap into a turned or milled groove on a shaft and prevent parts (bearings, gears, spacers, etc.) from sliding off.
Function: axial retention on a shaft — fits into a circumferential groove and resists axial movement of mounted parts.
Type: external circlip (fits onto the outside of a shaft). The complementary internal type for bores is DIN 472.
Shape: C-shaped, spring-steel ring with two end holes (or ears) for circlip pliers; designed to be expanded for installation/removal.
Materials: typically spring steel (e.g., unalloyed spring steel), also available in stainless steels for corrosion resistance; surface finishes include phosphate, black oxide, zinc plating, etc.
If you need specifics (dimensions, groove forms, nominal shaft size ranges, recommended materials or part numbers), tell me the shaft diameter or application and I can give recommended DIN 471 ring size and groove data or a source to consult the exact standard tables.
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