Description
| Design variant/feature | BC4.15/W20WI |
| Bore type | Cylindrical |
Dimensions
| d | 487.98 mm | Bore diameter |
|---|---|---|
| D | 637 mm | Outside diameter |
| B | 350 mm | Total bearing width over inner ring(s) |
| C | 350 mm | Total bearing width over outer ring(s) |
| d1 | ≈ 540.7 mm | Inner ring shoulder diameter |
| E | 605.7 mm | Raceway diameter outer ring |
| K | 9 mm | Diameter lubrication hole (outer ring) |
| r1,2 | min. 10.5 mm | Corner radius/chamfer inner ring |
| α | 20 ° | Chamfer angle inner ring |
| r3,4 | min. 4 mm | Chamfer dimension on the outer ring |
Calculation data
| Basic dynamic load rating | C | 6 440 kN |
|---|---|---|
| Basic static load rating | C0 | 15 300 kN |
| Fatigue load limit | Pu | 1 220 kN |
| Calculation factor | kr | 480 |
Tolerances and clearances
General bearing specifications
- Tolerances: P6, P5
- Radial internal clearance: cylindrical bore, tapered bore
Bearing interfaces
- Seat tolerances for standard conditions
- Tolerances and resultant fit
Four-row cylindrical roller bearings are designed to accommodate very heavy radial loads in combination with medium to high speeds. The NR assortment includes many designs and variants, such as bearings with a cage and full complement bearings. Depending on the configuration of the outer and inner rings, the bearings are available in locating as well as non-locating designs.
- Exceptional high radial load carrying capacity
- Low friction
- Long service life
- Low cross-sectional height
