Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71815 CD/P4
71815 CD/P4
Dimensions
| d | 75 | mm | |
| D | 95 | mm | |
| B | 10 | mm | |
| d1 | 81.7 | mm | |
| d2 | 81.7 | mm | |
| D1 | 88.5 | mm | |
| r1,2 | min. | 0.6 | mm |
| r3,4 | min. | 0.3 | mm |
| a | 16.4 | mm |
Abutment dimensions
| da | min. | 78.2 | mm |
| db | min. | 78.2 | mm |
| Da | max. | 91.8 | mm |
| Db | max. | 93 | mm |
| ra | max. | 0.6 | mm |
| rb | max. | 0.3 | mm |
| dn | 82.4 | mm |
Calculation data
| Basic dynamic load rating | C | 14.3 | kN | |
| Basic static load rating | C0 | 17 | kN | |
| Fatigue load limit | Pu | 0.72 | kN | |
| Attainable speed for grease lubrication | 13000 | r/min | ||
| Attainable speed for oil-air lubrication | 20000 | r/min | ||
| Ball diameter | Dw | 5.556 | mm | |
| Number of balls | z | 33 | ||
| Reference grease quantity | Gref | 1.5 | cm³ | |
| Preload and stiffness (back-to-back, face-to-face) | ||||
| Preload class A | GA | 76 | N | |
| Static axial stiffness, preload class A | 69 | N/µm | ||
| Preload class B | GB | 225 | N | |
| Static axial stiffness, preload class B | 119 | N/µm | ||
| Preload class C | GC | 450 | N | |
| Static axial stiffness, preload class C | 177 | N/µm | ||
| Calculation factors | ||||
| Calculation factor | f | 1.36 | ||
| Calculation factor | f1 | 1 | ||
| Calculation factor | f2A | 1 | ||
| Calculation factor | f2B | 1.09 | ||
| Calculation factor | f2C | 1.16 | ||
| Calculation factor | fHC | 1 | ||
| Calculation factor | f0 | 17.3 | ||
Mass
| Mass bearing | 0.14 | kg |