Select a different country or region to see content for your location.
United States
20:22:21 GMT+0000 (Coordinated Universal Time)
B7240-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 | 200 mm | Bore diameter |
| D | 360 mm | Outside diameter |
| B | 58 mm | Width |
| Cr | 330,000 N | Basic dynamic load rating, radial |
| C0r | 310,000 N | Basic static load rating, radial |
| Cur | 19,500 N | Fatigue load limit, radial |
| nG Grease | 3,200 1/min | Limiting speed for grease lubrication |
| nG Oil | 4,800 1/min | Limiting speed for oil lubrication |
| ≈m | 24.2 kg | Weight |
Mounting dimensions
| da | 238.5 mm | Diameter shaft shoulder |
| da | h12 | Diameter shaft shoulder clearance |
| Da | 321.5 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 | 257.1 mm | Minimum diameter injection pitch |
| Etk max | 270.1 mm | Maximum diameter injection pitch |
| Etk1 min | 257.1 mm | Minimum diameter injection pitch |
| Etk1 max | 270.1 mm | Maximum diameter injection pitch |
| a | 66.5 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 | 1,902 N | Preload force light |
| FV M | 6,047 N | Preload force medium |
| FV H | 12,156 N | Preload force heavy |
| KaE L | 5,777 N | Lift-off force light |
| KaE M | 19,638 N | Lift-off force medium |
| KaE H | 41,892 N | Lift-off force heavy |
| ca L | 210 N/µm | Axial rigidity light |
| ca M | 347 N/µm | Axial rigidity medium |
| ca H | 488 N/µm | Axial rigidity heavy |
All
English
2017-08-15 | Katalog | MH1 Dismounting Hydraulic | Englisch
Dismounting of rolling bearings - Hydraulic dismounting
2017-08-15 | Katalog | MH1 Dismounting Mechanical | Englisch
Dismounting of rolling bearings - Mechanical dismounting
2017-09-15 | Katalog | MH1 Thermal mounting | Englisch
Mounting of rolling bearing - Thermal mounting
2017-08-15 | Katalog | MH1 Mounting Mechanical | Englisch
Mounting of rolling bearings - Mechanical mounting
2017-09-15 | Katalog | MH1 Services | Englisch
Services
2024-08-1 | Katalog | SP 1 | Englisch
Super Precision Bearings
2017-09-15 | Katalog | MH1 Tables | Englisch
Tables
2017-09-15 | Katalog | MH1 Technical principles | Englisch