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DIN 471 circlip, 55 mm shaft

Circlips › DIN 471-55

A DIN 471-55 is an external circlip (a shaft clip) for a 55 mm shaft, 2 mm thick. Cut the groove Ø52 mm, 2.15 mm wide and 1.5 mm deep, and fit it with outside pliers, size A2.

Ø55m 2.15t 1.5groove Ø52 · clip 2GROOVE SECTION
DIN 471-55 · external, on a shaft · pliers A2 · shown fitted in its groove
Shaft Ø55 mm
Clip thickness2 mm
Groove Ø52 mm
Groove width2.15 mm
Groove depth1.5 mm
Pliersoutside, size A2

Sizes from DIN 471, as Benchsmith's Find → Circlip gives them. Groove depth = (shaft Ø − groove Ø) ÷ 2.

Open DIN 471-55 in BenchsmithAdd to order list

Bench note · why the groove, not the clip

The clip is named by the shaft it fits (Ø55), but you cut the groove: Ø52, 2.15 wide, 1.5 deep. Square corners at the bottom so the clip sits flat against the side.

Bench note · why outside pliers

A shaft clip (DIN 471) is opened to go on: outside pliers. Open it only as far as it takes to pass the shaft; stretched too far it stays loose in the groove.

Same Ø, bore clip

One size up or down

Clip gone and only the groove left? Measure the shaft, or the bottom of the old groove, and type it into Benchsmith → Find → Circlip.