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05:20:14 GMT+0000 (Coordinated Universal Time)
B7238-C-T-P4S-UL
Spindle bearing
Spindle bearing B72..-C, adjusted, in pairs or sets, contact angle α = 15°, restricted tolerances
Main Dimensions & Performance Data
| d | 190 mm | Bore diameter |
| D | 340 mm | Outside diameter |
| B | 55 mm | Width |
| Cr | 320.000 N | Basic dynamic load rating, radial |
| C0r | 290.000 N | Basic static load rating, radial |
| Cur | 18.800 N | Fatigue load limit, radial |
| nG Grease | 3.400 1/min | Limiting speed for grease lubrication |
| nG Oil | 5.000 1/min | Limiting speed for oil lubrication |
| ≈m | 20 kg | Weight |
Mounting dimensions
| da | 223,5 mm | Diameter shaft shoulder |
| da | h12 | Diameter shaft shoulder clearance |
| Da | 306,5 mm | Shoulder diameter outer ring |
| Da | H12 | Shoulder diameter outer ring clearance |
| ra max | 3 mm | Maximum recess radius |
| ra1 max | 3 mm | Maximum recess radius |
| Etk min | 242,1 mm | Minimum diameter injection pitch |
| Etk max | 255,3 mm | Maximum diameter injection pitch |
| Etk1 min | 242,1 mm | Minimum diameter injection pitch |
| Etk1 max | 255,3 mm | Maximum diameter injection pitch |
| a | 63 mm | Distance between the apexes of the pressure cones |
Dimensions
| rmin | 4 mm | Minimum chamfer dimension |
| r1 min | 4 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 | 1.846 N | Preload force light |
| FV M | 5.864 N | Preload force medium |
| FV H | 11.779 N | Preload force heavy |
| KaE L | 5.614 N | Lift-off force light |
| KaE M | 19.073 N | Lift-off force medium |
| KaE H | 40.669 N | Lift-off force heavy |
| ca L | 201 N/µm | Axial rigidity light |
| ca M | 333 N/µm | Axial rigidity medium |
| ca H | 468 N/µm | Axial rigidity heavy |
All
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