Recommended counterface surface finish
| Circumferential speed | Surface finish Ra
|
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| m/s | ft/min. | μm | μin. |
| >10 | >1 969 | 0,4–0,8 | 16–32 |
| 5–10 | 984–1 969 | 0,8–1,6 | 32–64 |
| 1–5 | 199–984 | 1,6–2,0 | 64–80 |
| <1 | <199 | 2,0–2,5 | 80–100 |
| The surface finish must not be lower than Ra = 0,05 μm (2 μin.). | |||
