Technical datas of super precision angular contact ball bearings S7200 ACD/HCP4A
| d | 10 | mm | ||
| D | 30 | mm | ||
| B | 9 | mm | ||
| d1 | 17.3 | mm | ||
| d2 | 17.3 | mm | ||
| D2 | 24.3 | mm | ||
| r1,2 | min. | 0.6 | mm | |
| r3,4 | min. | 0.3 | mm | |
| a | 9.3 | mm | ||
| Abutment dimensions | ||||
| da | min. | 14.2 | mm | |
| da | max. | 16.7 | mm | |
| db | min. | 14.2 | mm | |
| db | max. | 16.7 | mm | |
| Da | max. | 25.8 | mm | |
| Db | max. | 27.6 | mm | |
| ra | max. | 0.6 | mm | |
| rb | max. | 0.3 | mm | |
| Calculation data | ||||
| Basic dynamic load rating | C | 4.36 | kN | |
| Basic static load rating | C0 | 1.86 | kN | |
| Fatigue load limit | Pu | 0.057 | kN | |
| Attainable speed for grease lubrication | 63000 | r/min | ||
| Contact angle | α | 25 | ° | |
| Ball diameter | Dw | 4.762 | mm | |
| Number of balls | z | 10 | ||
| Preload and stiffness (back-to-back, face-to-face) | ||||
| Preload class A | GA | 27 | N | |
| Static axial stiffness, preload class A | 39 | N/µm | ||
| Preload class B | GB | 54 | N | |
| Static axial stiffness, preload class B | 50 | N/µm | ||
| Preload class C | GC | 108 | N | |
| Static axial stiffness, preload class C | 66 | N/µm | ||
| Preload class D | GD | 216 | N | |
| Static axial stiffness, preload class D | 87 | N/µm | ||
| Calculation factors | ||||
| Calculation factor | f | 1.02 | ||
| Calculation factor | f1 | 0.99 | ||
| Calculation factor | f2A | 1 | ||
| Calculation factor | f2B | 1.01 | ||
| Calculation factor | f2C | 1.03 | ||
| Calculation factor | f2D | 1.06 | ||
| Calculation factor | fHC | 1.01 | ||
| Calculation factor | e | 0.68 | ||
| Calculation factor (single, tandem) | Y2 | 0.87 | ||
| Calculation factor (single, tandem) | Y0 | 0.38 | ||
| Calculation factor (single, tandem) | X2 | 0.41 | ||
| Calculation factor (back-to-back, face-to-face) | Y1 | 0.92 | ||
| Calculation factor (back-to-back, face-to-face) | Y2 | 1.41 | ||
| Calculation factor (back-to-back, face-to-face) | Y0 | 0.76 | ||
| Calculation factor (back-to-back, face-to-face) | X2 | 0.67 | ||
| Mass | ||||
| Mass bearing | 0.029 | kg |
Code expanation of S7200 ACD/HCP4A super precision angular contact ball bearings
S-sealed bearing
72-in accordance with ISO dimension series 02
00-10mm bore diameter(inner diameter)
ACD-25° contact angle, high capacity design
HC-balls made of bearing grade silicon nitride Si3N4(hybrid bearing)
P4A-dimensional tolerances in accordance with ISO tolerance class 4, geometrical tolerances better than ISO tolerance class 4
For more super precision hybrid angular contact ball bearings, freely check with Mr Gavin Chu for more details.(gavinchu@sunrises-group.com)
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