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HCB7218-C-T-P4S-UL
Spindle bearing
Spindle bearing HCB72..-C, adjusted, in pairs or sets, contact angle α = 15°, with ceramic balls, restricted tolerances
Main Dimensions & Performance Data
| d | 90 mm | Bore diameter |
| D | 160 mm | Outside diameter |
| B | 30 mm | Width |
| Cr | 125.000 N | Basic dynamic load rating, radial |
| C0r | 72.000 N | Basic static load rating, radial |
| Cur | 5.200 N | Fatigue load limit, radial |
| nG Grease | 11.000 1/min | Limiting speed for grease lubrication |
| nG Oil | 18.000 1/min | Limiting speed for oil lubrication |
| ≈m | 1,8 kg | Weight |
Mounting dimensions
| da | 104 mm | Diameter shaft shoulder |
| da | h12 | Diameter shaft shoulder clearance |
| Da | 147 mm | Shoulder diameter outer ring |
| Da | H12 | Shoulder diameter outer ring clearance |
| ra max | 2 mm | Maximum recess radius |
| ra1 max | 1 mm | Maximum recess radius |
| Etk min | 112,1 mm | Minimum diameter injection pitch |
| Etk max | 120 mm | Maximum diameter injection pitch |
| Etk1 min | 112,1 mm | Minimum diameter injection pitch |
| Etk1 max | 120 mm | Maximum diameter injection pitch |
| a | 31,8 mm | Distance between the apexes of the pressure cones |
Dimensions
| rmin | 2 mm | Minimum chamfer dimension |
| r1 min | 2 mm | Minimum chamfer dimension |
| α | 15 ° | Contact angle |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 100 °C | Operating temperature max. |
Additional information
| FV L | 400 N | Preload force light |
| FV M | 1.303 N | Preload force medium |
| FV H | 2.655 N | Preload force heavy |
| KaE L | 1.197 N | Lift-off force light |
| KaE M | 4.129 N | Lift-off force medium |
| KaE H | 8.866 N | Lift-off force heavy |
| ca L | 95 N/µm | Axial rigidity light |
| ca M | 156 N/µm | Axial rigidity medium |
| ca H | 217 N/µm | Axial rigidity heavy |
All
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