DIN 6799 E-clip dimensions: retaining washers for shafts
Retaining washer for shafts, pushed into the groove from the side. Sized by the groove diameter d2, from 0.8 to 30 mm; each size fits a range of shafts.
DIN 6799 dimensions: E-clip size chart
| Groove d2 | d1from, mm | d1to, mm | smm | amm | d3max, mm | mgroove, mm | nmin, mm |
|---|---|---|---|---|---|---|---|
| 0.8 | 1 | 1.4 | 0.2 | 0.58 | 2.25 | 0.24 | 0.4 |
| 1.2 | 1.4 | 2 | 0.3 | 1.01 | 3.25 | 0.34 | 0.6 |
| 1.5 | 2 | 2.5 | 0.4 | 1.28 | 4.25 | 0.44 | 0.8 |
| 1.9 | 2.5 | 3 | 0.5 | 1.61 | 4.8 | 0.54 | 1 |
| 2.3 | 3 | 4 | 0.6 | 1.94 | 6.3 | 0.64 | 1 |
| 3.2 | 4 | 5 | 0.6 | 2.7 | 7.3 | 0.64 | 1 |
| 4 | 5 | 7 | 0.7 | 3.34 | 9.3 | 0.74 | 1.2 |
| 5 | 6 | 8 | 0.7 | 4.11 | 11.3 | 0.74 | 1.2 |
| 6 | 7 | 9 | 0.7 | 5.26 | 12.3 | 0.74 | 1.2 |
| 7 | 8 | 11 | 0.9 | 5.84 | 14.3 | 0.94 | 1.5 |
| 8 | 9 | 12 | 1 | 6.52 | 16.3 | 1.05 | 1.8 |
| 9 | 10 | 14 | 1.1 | 7.63 | 18.8 | 1.15 | 2 |
| 10 | 11 | 15 | 1.2 | 8.32 | 20.4 | 1.25 | 2 |
| 12 | 13 | 18 | 1.3 | 10.45 | 23.4 | 1.35 | 2.5 |
| 15 | 16 | 24 | 1.5 | 12.61 | 29.4 | 1.55 | 3 |
| 19 | 20 | 31 | 1.75 | 15.92 | 37.6 | 1.8 | 3.5 |
| 24 | 25 | 38 | 2 | 21.88 | 44.6 | 2.05 | 4 |
| 30 | 32 | 42 | 2.5 | 25.8 | 52.6 | 2.55 | 4.5 |
Dimensions in millimetres unless stated. Select a row to load its CAD files above.
E-clip dimensions: how the DIN 6799 size is read
An E-clip is ordered by its groove diameter d2, not by the shaft. Each size fits a range of shaft diameters, given in the table as d1 from and to. The opening a is narrower than d2, so the clip snaps over the groove and rests on it at three points.
DIN 6799 E-clip or DIN 471 circlip
An E-clip goes on from the side with a flat tool or an applicator, so it suits assemblies where the shaft end cannot be reached and where the axial load is moderate. A DIN 471 circlip surrounds the whole groove and is the choice when the ring has to take more load. Both are compared in the circlip size chart.
DIN 6799 E-clips: common questions
- Which E-clip fits a 10 mm shaft?
- Two sizes cover a 10 mm shaft: DIN 6799 size 8 (shafts from 9 to 12 mm) and size 9 (10 to 14 mm). The groove diameter decides: size 8 needs an 8 mm groove and size 9 a 9 mm groove.
- Why is an E-clip sized by the groove and not the shaft?
- Because the clip only touches the groove. The same groove can be cut in shafts of several diameters, so the shaft range is a guide and the groove diameter is the dimension that matters.