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71805CD/HCP4 super precision angular contact ball bearing specification
| Designation | 71805 CD/HCP4 | |
| Category | ||
| Angular contact ball bearing, super-precision | ||
| Dimensions | ||
| d (Bore diameter) | 25 mm | 0.984 in |
| D (Outer diameter) | 37 mm | 1.457 in |
| B (Width) | 7 mm | 0.276 in |
| W (Weight) | 0.019 kg | 0.042 lbs |
| Technical Data | ||
| Fatigue load limit (kN) | 0.098 | |
| Attainable speed for grease lubrication (r/min) | 45 000 | |
| Attainable speed for oil-air lubrication (r/min) | 70 000 | |
| Contact angle | 15 ° | |
| Ball diameter (mm) | 3.175 mm | |
| Number of balls | 20 | |
| Reference grease quantity | 0.21 cm3 | |
| Seal | No | |
| Precision | P4 | |
Extended 71805.CD.HCP4 angular contact ball bearings 25*37*7
| Designation | Principal dimensions | Basic load ratings | Attainable speeds | ||||
| dynamic | static | Grease lubrication | Oil-air lubrication | ||||
| d[in] | D[in] | B[in] | C[lbf] | C0[lbf] | [r/min] | [r/min] | |
| 71805 ACD/P4 | 0.984 | 1.457 | 0.276 | 34 000 | 53 000 | ||
| 71805 CD/P4 | 0.984 | 1.457 | 0.276 | 38 000 | 56 000 | ||
| 71805 ACD/HCP4 | 0.984 | 1.457 | 0.276 | 40 000 | 63 000 | ||
| 71805 CD/HCP4 | 0.984 | 1.457 | 0.276 | 45 000 | 70 000 | ||
| 71905 ACE/P4AH | 0.984 | 1.654 | 0.354 | 4.94 | 2.7 | 44 000 | 68 000 |
| 71905 ACE/P4AL | 0.984 | 1.654 | 0.354 | 4.94 | 2.7 | 44 000 | 68 000 |
| S71905 ACE/P4A | 0.984 | 1.654 | 0.354 | 4.94 | 2.7 | 44 000 | |
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