| Bearing number | W 63806-2Z |
| Size (mm) | 42x30x10 |
| Bore Diameter (mm) | 42 |
| Outer Diameter (mm) | 30 |
| Width (mm) | 10 |
| d | 30 mm |
| D | 42 mm |
| B | 10 mm |
| d2 | 33.11 mm |
| D2 | 39.2 mm |
| r1,2 - min. | 0.3 mm |
| da - min. | 32 mm |
| da - max. | 33 mm |
| Da - max. | 40 mm |
| ra - max. | 0.3 mm |
| Basic dynamic load rating - C | 3.6 kN |
| Basic static load rating - C0 | 2.9 kN |
| Fatigue load limit - Pu | 0.125 kN |
| Reference speed | 34000 r/min |
| Limiting speed | 17000 r/min |
| Calculation factor - kr | 0.02 |
| Calculation factor - f0 | 14.1 |
| d2 ≈ | 33.11 mm |
| D2 ≈ | 39.2 mm |
| r1,2 min. | 0.3 mm |
| da min. | 32 mm |
| da max. | 33 mm |
| Da max. | 40 mm |
| ra max. | 0.3 mm |
| Basic dynamic load rating C | 3.58 kN |
| Basic static load rating C0 | 2.9 kN |
| Fatigue load limit Pu | 0.125 kN |
| Calculation factor kr | 0.02 |
| Calculation factor f0 | 14.1 |
| Mass bearing | 0.036 kg |
