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HC71903-E-T-P4S-UL
High speed spindle bearing
High speed spindle bearing HC719..-E, adjusted, in pairs or sets, contact angle α = 25°, with ceramic balls, restricted tolerances
제품 정보
Main Dimensions & Performance Data
| d | 17 mm | Bore diameter |
| D | 30 mm | Outside diameter |
| B | 7 mm | Width |
| Cr | 2,480 N | Basic dynamic load rating, radial |
| C0r | 1,030 N | Basic static load rating, radial |
| Cur | 83 N | Fatigue load limit, radial |
| nG Grease | 80,000 1/min | Limiting speed for grease lubrication |
| nG Oil | 120,000 1/min | Limiting speed for oil lubrication |
| ≈m | 18 g | 중량 |
Mounting dimensions
| da | 20 mm | Diameter shaft shoulder |
| da | h12 | Diameter shaft shoulder clearance |
| Da | 27.5 mm | Shoulder diameter outer ring |
| Da | H12 | Shoulder diameter outer ring clearance |
| ra max | 0.3 mm | Maximum recess radius |
| ra1 max | 0.1 mm | Maximum recess radius |
| Etk min | 21.9 mm | Minimum diameter injection pitch |
| Etk max | 22.4 mm | Maximum diameter injection pitch |
| Etk1 min | 20.8 mm | Minimum diameter injection pitch |
| Etk1 max | 22.4 mm | Maximum diameter injection pitch |
| a | 9 mm | Distance between the apexes of the pressure cones |
Dimensions
| rmin | 0.3 mm | Minimum chamfer dimension |
| r1 min | 0.3 mm | Minimum chamfer dimension |
| α | 25 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 100 °C | Operating temperature max. |
Additional information
| FV L | 11 N | Preload force light |
| FV M | 33 N | Preload force medium |
| FV H | 66 N | Preload force heavy |
| KaE L | 31 N | Lift-off force light |
| KaE M | 96 N | Lift-off force medium |
| KaE H | 195 N | Lift-off force heavy |
| ca L | 30 N/µm | Axial rigidity light |
| ca M | 44 N/µm | Axial rigidity medium |
| ca H | 57 N/µm | Axial rigidity heavy |
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