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71944CD/HCP4AL super precision angular contact ball bearing specification
| Designation | 71944 CD/HCP4AL | |
| Category | ||
| Angular contact ball bearing, super-precision | ||
| Dimensions | ||
| d (Bore diameter) | 220 mm | 7.874 in |
| D (Outer diameter) | 300 mm | 12.205 in |
| B (Width) | 38 mm | 2.008 in |
| W (Weight) | 5.56 kg | 22.2 lbs |
| Technical Data | ||
| Cr (kN) Basic dynamic load rating | 221 | |
| C0r (kN) Basic static load rating | 300 | |
| Fatigue load limit (kN) | 5.7 | |
| Attainable speed for grease lubrication (r/min) | 5300 | |
| Attainable speed for oil-air lubrication (r/min) | 7500 | |
| Contact angle | 15 ° | |
| Ball diameter (mm) | 25.4 mm | |
| Number of balls | 29 | |
| Reference grease quantity | 84 cm3 | |
| Seal | No | |
| Precision | P4A | |
71944.CD.HCP4AL angular contact ball bearing 220*300*38
| 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] | |
| 71944 ACD/P4AL | 220 | 300 | 38 | 208 | 285 | 3 800 | 5 600 |
| 71944 CD/HCP4A | 220 | 300 | 38 | 221 | 300 | 5 300 | 7 500 |
| 71944 CD/HCP4AL | 220 | 300 | 38 | 221 | 300 | 5 300 | 7 500 |
| 71944 CD/P4A | 220 | 300 | 38 | 221 | 300 | 4 300 | 6 300 |
| 71944 CD/P4AL | 220 | 300 | 38 | 221 | 300 | 4 300 | 6 300 |
| 7048 ACD/HCP4A | 240 | 360 | 56 | 325 | 465 | 4 300 | 6 300 |
| 7048 ACD/P4A | 240 | 360 | 56 | 325 | 465 | 3 400 | 5 000 |
| 7048 CD/HCP4A | 240 | 360 | 56 | 345 | 490 | 4 500 | 7 000 |
| 7048 CD/P4A | 240 | 360 | 56 | 345 | 490 | 3 800 | 5 600 |
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