Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7024 CD/HCP4A
7024 CD/HCP4A
Dimensions
| d | 120 | mm | |
| D | 180 | mm | |
| B | 28 | mm | |
| d1 | 138.5 | mm | |
| d2 | 138.5 | mm | |
| D1 | 161.5 | mm | |
| r1,2 | min. | 2 | mm |
| r3,4 | min. | 1 | mm |
| a | 34.2 | mm |
Abutment dimensions
| da | min. | 129 | mm |
| db | min. | 129 | mm |
| Da | max. | 171 | mm |
| Db | max. | 175 | mm |
| ra | max. | 2 | mm |
| rb | max. | 1 | mm |
| dn | 142.6 | mm |
Calculation data
| Basic dynamic load rating | C | 114 | kN | |
| Basic static load rating | C0 | 122 | kN | |
| Fatigue load limit | Pu | 4.25 | kN | |
| Attainable speed for grease lubrication | 8500 | r/min | ||
| Attainable speed for oil-air lubrication | 13000 | r/min | ||
| Ball diameter | Dw | 19.05 | mm | |
| Number of balls | z | 22 | ||
| Reference grease quantity | Gref | 27 | cm³ | |
| Preload and stiffness (back-to-back, face-to-face) | ||||
| Preload class A | GA | 430 | N | |
| Static axial stiffness, preload class A | 146 | N/µm | ||
| Preload class B | GB | 860 | N | |
| Static axial stiffness, preload class B | 198 | N/µm | ||
| Preload class C | GC | 1720 | N | |
| Static axial stiffness, preload class C | 278 | N/µm | ||
| Preload class D | GD | 3440 | N | |
| Static axial stiffness, preload class D | 404 | N/µm | ||
| Calculation factors | ||||
| Calculation factor | f | 1.17 | ||
| Calculation factor | f1 | 1 | ||
| Calculation factor | f2A | 1 | ||
| Calculation factor | f2B | 1.02 | ||
| Calculation factor | f2C | 1.05 | ||
| Calculation factor | f2D | 1.09 | ||
| Calculation factor | fHC | 1.02 | ||
| Calculation factor | f0 | 15.7 | ||
Mass
| Mass bearing | 1.76 | kg |