Speed limits for grease life calculation for sealed spherical roller bearings
| Bearing series | Maximum ndm value1) | |
|
Light load (P ≤ 0,067 C) |
Normal load (P ≤ 0,125 C) |
|
| - | mm/min |
|
| 222, 239 | 250 000 | 200 000 |
| 223, 230, 231, 232, 240 | 250 000 | 150 000 |
| 241 | 150 000 | 80 000 |
-
1)
n = rotational speed [r/min]
dm = bearing mean diameter [mm]
= 0,5 (d + D)
