External circlips DIN 471 for Ø4 to Ø20 shafts
What is the circlip groove for an 8 mm shaft? · Hardware · basis: DIN 471 external retaining rings: groove Ø and width per shaft Ø; ring thickness per the standard
Long Earth Society build part. Flywheel and crank shafts with their clips and collars. The engines
Exact dimensions. Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part. Mating features
- sizes
- 8 in table
Notes
- An open ring that springs into a shaft groove, with two lugs (Ø3.2, Ø1.4 holes) either side of the gap. The ring bore is the groove Ø; its OD is 1.9 × the shaft Ø and the gap is 0.35 × the groove Ø.
- Groove Ø × width (ring thickness) by shaft: 4 → 3.8 × 0.5 (0.4); 5 → 4.8 × 0.7 (0.6); 6 → 5.7 × 0.8 (0.7); 8 → 7.6 × 0.9 (0.8); 10 → 9.6 × 1.1 (1.0); 12 → 11.5 × 1.1 (1.0); 15 → 14.3 × 1.1 (1.0); 20 → 19.0 × 1.3 (1.2).
- The groove itself is drawn on shaft-8x100-grooved (Ø7.6 × 0.9).
Sizes
| file | shaft Ø | groove Ø | groove width | ring thickness | ring OD |
|---|---|---|---|---|---|
| circlip-4mm | 4 | 3.8 | 0.5 | 0.4 | 7.6 |
| circlip-5mm | 5 | 4.8 | 0.7 | 0.6 | 9.5 |
| circlip-6mm | 6 | 5.7 | 0.8 | 0.7 | 11.4 |
| circlip-8mm | 8 | 7.6 | 0.9 | 0.8 | 15.2 |
| circlip-10mm | 10 | 9.6 | 1.1 | 1.0 | 19.0 |
| circlip-12mm | 12 | 11.5 | 1.1 | 1.0 | 22.8 |
| circlip-15mm | 15 | 14.3 | 1.1 | 1.0 | 28.5 |
| circlip-20mm | 20 | 19.0 | 1.3 | 1.2 | 38.0 |
Mating features
Drawn at the exact size. Open press, slide, run and socket features by your process's clearance; leave designed gaps and clamp fits as drawn.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| circlip bore | groove Ø (DIN 471) | shaft groove | designed | circlip-* |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Wikipedia | Circlip | web | CC BY-SA 4.0 (text) |
| Wikipedia | Retaining ring | web | CC BY-SA 4.0 (text) |
| McMaster-Carr | Shaft collars (free STEP per part, for your own design use; no redistribution) | STEP, PDF | McMaster-Carr site terms verify |
| McMaster-Carr | Retaining rings (free STEP per part, for your own design use; no redistribution) | STEP, PDF | McMaster-Carr site terms verify |
| Long Earth Society | Engine and rig builds | web, video | LES site |
Free files
★ Free files 8 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| circlip-4mm | DIN 471 external circlip for Ø4 shaft: groove Ø3.8 × 0.5 wide | STEP · STL |
| circlip-5mm | DIN 471 external circlip for Ø5 shaft: groove Ø4.8 × 0.7 wide | STEP · STL |
| circlip-6mm | DIN 471 external circlip for Ø6 shaft: groove Ø5.7 × 0.8 wide | STEP · STL |
| circlip-8mm | DIN 471 external circlip for Ø8 shaft: groove Ø7.6 × 0.9 wide | STEP · STL |
| circlip-10mm | DIN 471 external circlip for Ø10 shaft: groove Ø9.6 × 1.1 wide | STEP · STL |
| circlip-12mm | DIN 471 external circlip for Ø12 shaft: groove Ø11.5 × 1.1 wide | STEP · STL |
| circlip-15mm | DIN 471 external circlip for Ø15 shaft: groove Ø14.3 × 1.1 wide | STEP · STL |
| circlip-20mm | DIN 471 external circlip for Ø20 shaft: groove Ø19.0 × 1.3 wide | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=circlips-din-471

How it fits
Goes in or on
Connects to
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Questions
What is the circlip groove for an 8 mm shaft?
DIN 471: Ø7.6, 0.9 wide; the ring is 0.8 thick.
What is the circlip groove for a 10 mm shaft?
Ø9.6 × 1.1; ring 1.0 thick.
