SKF spherical roller bearings Boundary dimensions: ISO 15:2011, except for the width of sealed bearings with a BS2- prefix.
Tolerances: Normal, P5 running accuracy on request (designation suffix C08). Except for: SKF Explorer bearings (d ≤ 300 mm):
- P5 running accuracy
- width tolerance at least 50% tighter than ISO standard
| Bore diameter | Width tolerances | ||
|---|---|---|---|
| in accordance with SKF standard | |||
| d | tΔBs | ||
| > | ≤ | U | L |
| mm | μm | ||
| 18 | 50 | 0 | –60 |
| 50 | 80 | 0 | –60 |
| 80 | 120 | 0 | –80 |
| 120 | 180 | 0 | –80 |
| 180 | 250 | 0 | –80 |
| 250 | 300 | 0 | –100 |
Bearings for vibratory applications like SKF Explorer and
- P5 bore diameter
- P6 outside diameter
For additional information
- Normal tolerances for radial bearings
- P6 class tolerances for radial bearings
- P5 class tolerances for radial bearings
- SKF bearing tolerances












