Description
| Bore type | Cylindrical |
Dimensions
| d | 1 120 mm | Bore diameter |
|---|---|---|
| D | 1 580 mm | Outside diameter |
| B | 462 mm | Width |
| d2 | ≈ 1 268 mm | Shoulder diameter of inner ring |
| D1 | ≈ 1 423 mm | Shoulder/recess diameter of outer ring |
| b | 22.3 mm | Width of lubrication groove |
| K | 12 mm | Diameter of lubrication hole |
| r1,2 | min. 9.5 mm | Chamfer dimension |
| Normal | ISO tolerance class for dimensions |
Abutment dimensions
| da | min. 1 154 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 1 546 mm | Diameter of housing abutment |
| ra | max. 8 mm | Radius of fillet |
Calculation data
| NR performance class | NR Explorer | |
| Basic dynamic load rating | C | 22 364 kN |
| Basic static load rating | C0 | 50 000 kN |
| Fatigue load limit | Pu | 2 750 kN |
| Reference speed | 130 r/min | |
| Limiting speed | 240 r/min | |
| Limiting value | e | 0.26 |
| Calculation factor | Y1 | 2.6 |
| Calculation factor | Y2 | 3.9 |
| Calculation factor | Y0 | 2.5 |
Tolerances of run-out
| ISO tolerance class for geoal tolerances | Normal |
Radial internal clearance
| Minimum initial clearance | 530 µm |
| Maximum initial clearance | 780 µm |
Tolerances and clearances
General bearing specifications
- Tolerances: Normal, P6, P5,
tapered bore 1:12, tapered bore 1:30 - Radial internal clearance: cylindrical bore, tapered bore
Bearing interfaces
- Seat tolerances for standard conditions
- Tolerances and resultant fit
Spherical roller bearings can accommodate heavy loads in both directions. They are self-aligning and accommodate misalignment and shaft deflections, with virtually no increase in friction or temperature. The design includes features to facilitate relubrication. The bearings can be used in a modular system, including housings, sleeves and nuts.
- Accommodate misalignment
- High load carrying capacity
- Relubrication features
- Low friction and long service life
- Increased wear resistance
