Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF 306 NR
306 NR
Dimensions
| d | 30 | mm | |
| D | 72 | mm | |
| B | 19 | mm | |
| d1 | ≈ | 44.6 | mm |
| D2 | ≈ | 61.88 | mm |
| D3 | 68.81 | mm | |
| D4 | 78.6 | mm | |
| b | 1.9 | mm | |
| C | 3.28 | mm | |
| f | 1.7 | mm | |
| r0 | max. | 0.6 | mm |
| r1,2 | min. | 1.1 | mm |
Abutment dimensions
| da | min. | 37 | mm |
| Da | max. | 65 | mm |
| Db | min. | 80 | mm |
| ba | min. | 2.2 | mm |
| Ca | max. | 4.98 | mm |
| ra | max. | 1 | mm |
Calculation data
| Basic dynamic load rating | C | 29.7 | kN | |
| Basic static load rating | C0 | 21.6 | kN | |
| Fatigue load limit | Pu | 0.93 | kN | |
| Reference speed | 18000 | r/min | ||
| Limiting speed | 11000 | r/min | ||
| Calculation factor | kr | 0.05 |
Mass
| Mass bearing | 0.37 | kg |
Included products
| Snap ring | SP 72 | |||