TR250M-3 Slewing Bearings For Cranes
| Bearing number: | 6980 |
| Size (mm): | 400x540x65 |
| Bore Diameter (mm): | 400 |
| Outer Diameter (mm): | 540 |
| Width (mm): | 65 |
| d: | 400 mm |
| D: | 540 mm |
| B: | 65 mm |
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Product Details
| Bearing number | 6980 |
| Size (mm) | 400x540x65 |
| Bore Diameter (mm) | 400 |
| Outer Diameter (mm) | 540 |
| Width (mm) | 65 |
| d | 400 mm |
| D | 540 mm |
| B | 65 mm |
| C | 65 mm |
| r min. | 4 mm |
| Da max. | 524 mm |
| db min | 416 mm |
| ra max. | 3 mm |
| Weight | 41,6 Kg |
| Basic dynamic load rating (C) | 335 kN |
| Basic static load rating (C0) | 535 kN |
| (Grease) Lubrication Speed | 990 r/min |
| (Oil) Lubrication Speed | 1 200 r/min |
| d1 | 445.2 mm |
| D1 | 494.8 mm |
| rs min | 4 mm |
| Radial clearance class | CN |
| Mass | 42.1 kg |
| Dynamic load, C | 335 kN |
| Static load, C0 | 535 kN |
| Fatigue limit load, Cu | 0 kN |
| f0 | 16.5 |
| Nlim (oil) | 1,200 rpm |
| Nlim (grease) | 990 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.46 Hz |
| Characteristic rolling element frequency, BSF | 11.3 Hz |
| Characteristic outer ring frequency, BPF0 | 8.67 Hz |
| Characteristic inner ring frequency, BPFI | 10.33 Hz |
| da min | 416 mm |
| da max | 445 mm |
| Da max | 524 mm |
| ra max | 3 mm |
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