Bearings, units and housings -- Super-precision bearings -- Double direction angular contact thrust ball bearings -- Angular contact thrust ball bearings, double direction, super-precision -- SKF BTM 140 AM/P4CDB
BTM 140 AM/P4CDB
Dimensions
| d | 140 | mm | |
| D | 210 | mm | |
| H | 63 | mm | |
| d1 | 172.6 | mm | |
| D1 | 192.1 | mm | |
| r1,2 | min. | 2.1 | mm |
| r3,4 | min. | 1 | mm |
Abutment dimensions
| da | min. | 151 | mm |
| Da | max. | 205 | mm |
| ra | max. | 2 | mm |
| rb | max. | 1 | mm |
| dn | 168.3 | mm |
Calculation data
Notes
| Basic dynamic load rating | C | 73.5 | kN | |
| Basic static load rating | C0 | 190 | kN | |
| Fatigue load limit | Pu | 6.1 | kN | |
| Attainable speed for grease lubrication | 4400 | r/min | ||
| Attainable speed for oil-air lubrication | 5700 | r/min | ||
| Preload class A | 800 | N | ||
| Preload class B | 2400 | N | ||
| Static axial stiffnes for preload A | 440 | N/µm | ||
| Static axial stiffnes for preload B | 667 | N/µm | ||
| Reference grease quantity | Gref | 62 | cm³ |
Speed values are applicable to bearings with light preload (suffix DBA). For bearings with a heavy preload (suffix DBB), attainable speeds are about 75% of the quoted values.
Mass
| Mass bearing | 7.85 | kg |