Bearings, units and housings -- Super-precision bearings -- Angular contact thrust ball bearings for screw drives -- Angular contact thrust ball bearings for screw drives, single direction, super-precision -- SKF BSA 306 C
BSA 306 C
Dimensions
| d | 30 | mm | |
| D | 72 | mm | |
| H | 19 | mm | |
| d1 | 43.99 | mm | |
| d2 | 51 | mm | |
| D1 | 51.1 | mm | |
| D2 | 59.46 | mm | |
| r1,2 | min. | 1 | mm |
| a | 57 | mm |
Abutment dimensions
| da | min. | 40 | mm |
| db | min. | 40 | mm |
| Da | max. | 65.5 | mm |
| Db | max. | 65.5 | mm |
| ra | max. | 1 | mm |
Calculation data
| Basic dynamic load rating | C | 41.5 | kN | |
| Basic static load rating | C0 | 104 | kN | |
| Fatigue load limit | Pu | 3.9 | kN | |
| Attainable speed for grease lubrication | 7000 | r/min | ||
| Attainable speed for oil-air lubrication | 9500 | r/min | ||
| Preload class A | 3000 | N | ||
| Preload class B | 6000 | N | ||
| Frictional moment, preload class A | 0.175 | N·m | ||
| Frictional moment, preload class B | 0.32 | N·m | ||
| Static axial stiffnes, preload A | 1010 | N/µm | ||
| Static axial stiffnes, preload B | 1280 | N/µm | ||
| Maximum axial load carrying capacity | Fa | max. | 46 | kN |
| Reference grease quantity | Gref | 3.5 | cm³ |
Mass
| Mass bearing | 0.41 | kg |