# E-clips DIN 6799 for Ø2 to Ø10 shafts

> What groove does an E-clip for a 5 mm shaft need?

- Category: Hardware › Motion
- Kind: Hardware
- Basis: DIN 6799 retaining washers: groove Ø and width per shaft Ø; clip thickness per the standard
- Page: https://xemstudio.com/objects/e-clips-din-6799/ · JSON: https://xemstudio.com/api/geometry?object=e-clips-din-6799 · Plain text: https://xemstudio.com/objects/e-clips-din-6799/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses

**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.

## Notes

- An open E-shaped washer that snaps sideways into a shaft groove. The clip bore is the groove Ø; its OD is 2.2 × the shaft Ø and the opening is 0.9 × the groove Ø wide.
- Groove Ø × width (clip thickness) by shaft: 2 → 1.4 × 0.4 (0.4); 3 → 2.3 × 0.5 (0.5); 4 → 3.2 × 0.7 (0.6); 5 → 4.0 × 0.7 (0.6); 6 → 5.0 × 0.7 (0.7); 8 → 6.0 × 0.9 (0.8); 10 → 8.0 × 1.1 (1.0).
- The groove itself is drawn on shaft-5x80-grooved (Ø4.0 × 0.7).

## Mating features (exact size; open press / slide / run / socket by your process clearance, leave designed and clamp as drawn)

| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| E-clip bore | groove Ø (DIN 6799) | shaft groove | designed | eclip-* |

## Sizes

| file | shaft Ø | groove Ø | groove width | clip thickness | clip OD |
|---|---|---|---|---|---|
| eclip-2mm | 2 | 1.4 | 0.4 | 0.4 | 4.4 |
| eclip-3mm | 3 | 2.3 | 0.5 | 0.5 | 6.6 |
| eclip-4mm | 4 | 3.2 | 0.7 | 0.6 | 8.8 |
| eclip-5mm | 5 | 4.0 | 0.7 | 0.6 | 11.0 |
| eclip-6mm | 6 | 5.0 | 0.7 | 0.7 | 13.2 |
| eclip-8mm | 8 | 6.0 | 0.9 | 0.8 | 17.6 |
| eclip-10mm | 10 | 8.0 | 1.1 | 1.0 | 22.0 |

## Where the files are

- Wikipedia: [Circlip](https://en.wikipedia.org/wiki/Circlip) — web — CC BY-SA 4.0 (text)
- Wikipedia: [Retaining ring](https://en.wikipedia.org/wiki/Retaining_ring) — web — CC BY-SA 4.0 (text)
- McMaster-Carr: [Shaft collars (free STEP per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/shaft-collars/) — STEP, PDF — McMaster-Carr site terms (verify at link)
- McMaster-Carr: [Retaining rings (free STEP per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/retaining-rings/) — STEP, PDF — McMaster-Carr site terms (verify at link)
- Long Earth Society: [Engine and rig builds](https://longearthsociety.com/engineering/) — web, video — LES site

## Free STEP/STL (7 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/e-clips-din-6799/index.json

- eclip-2mm: [STEP](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-2mm.step) · [STL](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-2mm.stl) — DIN 6799 E-clip for Ø2 shaft: groove Ø1.4 × 0.4 wide
- eclip-3mm: [STEP](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-3mm.step) · [STL](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-3mm.stl) — DIN 6799 E-clip for Ø3 shaft: groove Ø2.3 × 0.5 wide
- eclip-4mm: [STEP](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-4mm.step) · [STL](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-4mm.stl) — DIN 6799 E-clip for Ø4 shaft: groove Ø3.2 × 0.7 wide
- eclip-5mm: [STEP](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-5mm.step) · [STL](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-5mm.stl) — DIN 6799 E-clip for Ø5 shaft: groove Ø4.0 × 0.7 wide
- eclip-6mm: [STEP](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-6mm.step) · [STL](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-6mm.stl) — DIN 6799 E-clip for Ø6 shaft: groove Ø5.0 × 0.7 wide
- eclip-8mm: [STEP](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-8mm.step) · [STL](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-8mm.stl) — DIN 6799 E-clip for Ø8 shaft: groove Ø6.0 × 0.9 wide
- eclip-10mm: [STEP](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-10mm.step) · [STL](https://xemstudio.com/files/hardware/shaft-collars-clips-and-shafts/eclip-10mm.stl) — DIN 6799 E-clip for Ø10 shaft: groove Ø8.0 × 1.1 wide

## How it fits

### Goes in or on
- [Metric shafts Ø3 to Ø10 with D-flats and clip grooves](https://xemstudio.com/objects/metric-shafts/): groove on shaft-5x80-grooved (Ø4.0 × 0.7)

### Alternatives
- [External circlips DIN 471 for Ø4 to Ø20 shafts](https://xemstudio.com/objects/circlips-din-471/): ring with lugs, full groove
- [Set-screw shaft collars Ø3 to Ø12](https://xemstudio.com/objects/shaft-collars/): set-screw collar, no groove

## Questions

**What groove size for an E-clip on a 5 mm shaft?**

Ø4.0 groove, 0.7 wide (DIN 6799); the clip is 0.6 thick.

**What groove for an E-clip on a 3 mm shaft?**

Ø2.3 × 0.5; the clip is 0.5 thick.

## Fits with

- [Metric shafts Ø3 to Ø10 with D-flats and clip grooves](https://xemstudio.com/objects/metric-shafts/)
- [External circlips DIN 471 for Ø4 to Ø20 shafts](https://xemstudio.com/objects/circlips-din-471/)
- [Set-screw shaft collars Ø3 to Ø12](https://xemstudio.com/objects/shaft-collars/)
- [Ball bearings, 683 to 6210 and flanged F6xx (ISO 15)](https://xemstudio.com/objects/ball-bearings-metric/)