DIN 472 circlip, 40 mm bore
Circlips › DIN 472-40
A DIN 472-40 is an internal circlip (a bore clip) for a 40 mm bore, 1.75 mm thick. Cut the groove Ø42.5 mm, 1.85 mm wide and 1.25 mm deep, and fit it with inside pliers, size J2.
| Bore Ø | 40 mm |
|---|---|
| Clip thickness | 1.75 mm |
| Groove Ø | 42.5 mm |
| Groove width | 1.85 mm |
| Groove depth | 1.25 mm |
| Pliers | inside, size J2 |
Sizes from DIN 472, as Benchsmith's Find → Circlip gives them. Groove depth = (bore Ø − groove Ø) ÷ 2.
Open DIN 472-40 in BenchsmithAdd to order list
Bench note · why the groove, not the clip
The clip is named by the bore it fits (Ø40), but you cut the groove: Ø42.5, 1.85 wide, 1.25 deep. Square corners at the bottom so the clip sits flat against the side.
Bench note · why inside pliers
A bore clip (DIN 472) is squeezed to go in: inside pliers. Squeeze it only as far as it takes; bent past that it springs out under load.
Same Ø, shaft clip
- DIN 471-40shaft Ø40, groove Ø37.5
One size up or down
- DIN 472-37bore Ø37 (down)
- DIN 472-42bore Ø42 (up)
Clip gone and only the groove left? Measure the bore, or the bottom of the old groove, and type it into Benchsmith → Find → Circlip.