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7038CD/HCP4A super precision angular contact ball bearing specification
| Designation | 7038-CD/HCP4A | |
| Category | ||
| Angular contact ball bearing, super-precision | ||
| Dimensions | ||
| d (Bore diameter) | 190 mm | 6.299 in |
| D (Outer diameter) | 290 mm | 8.661 in |
| B (Width) | 46 mm | 1.102 in |
| W (Weight) | 8.03 kg | 5.95 lbs |
| Technical Data | ||
| Cr (kN) Basic dynamic load rating | 247 | |
| C0r (kN) Basic static load rating | 305 | |
| Fatigue load limit (kN) | 6.1 | |
| Attainable speed for grease lubrication (r/min) | 5600 | |
| Attainable speed for oil-air lubrication (r/min) | 9000 | |
| Contact angle | 15 ° | |
| Ball diameter (mm) | 30.162 mm | |
| Number of balls | 22 | |
| Reference grease quantity | 114 cm3 | |
| Seal | No | |
| Precision | P4A | |
Extended 7038.CD.HCP4A angular contact ball bearing 190*290*46
| Designation | Principal dimensions | Basic load ratings | Attainable speeds | ||||
| dynamic | static | Grease lubrication | Oil-air lubrication | ||||
| d[mm] | D[mm] | B[mm] | C[kN] | C0[kN] | [r/min] | [r/min] | |
| 7038 ACD/HCP4A | 190 | 290 | 46 | 234 | 290 | 5 300 | 8 000 |
| 7038 ACD/HCP4AH1 | 190 | 290 | 46 | 234 | 290 | 5 300 | 8 000 |
| 7038 ACD/P4A | 190 | 290 | 46 | 234 | 290 | 4 300 | 6 300 |
| 7038 ACD/P4AH1 | 190 | 290 | 46 | 234 | 290 | 4 300 | 6 300 |
| 7038 CD/HCP4A | 190 | 290 | 46 | 247 | 305 | 5 600 | 9 000 |
| 7038 CD/HCP4AH1 | 190 | 290 | 46 | 247 | 305 | 5 600 | 9 000 |
| 7038 CD/P4A | 190 | 290 | 46 | 247 | 305 | 4 800 | 7 000 |
| 7038 CD/P4AH1 | 190 | 290 | 46 | 247 | 305 | 4 800 | 7 000 |
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