Description
| Bore type | Cylindrical |
Dimensions
| d | 1 000 mm | Bore diameter |
|---|---|---|
| tΔdmp | -0.1 – 0.0 mm | Deviation limits of mid-range bore diameter |
| D | 1 320 mm | Outside diameter |
| tΔDmp | -0.16 – 0.0 mm | Deviation limits of mid-range outside diameter |
| B | 315 mm | Width |
| tΔBs | -1.0 – 0.0 mm | Deviation limits of ring width |
| d2 | ≈ 1 109 mm | Shoulder diameter of inner ring |
| D1 | ≈ 1 212 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. 7.5 mm | Chamfer dimension |
| Normal | ISO tolerance class for dimensions |
Abutment dimensions
| da | min. 1 028 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 1 292 mm | Diameter of housing abutment |
| ra | max. 6 mm | Radius of fillet |
Calculation data
| NR performance class | NR Explorer | |
| Basic dynamic load rating | C | 11 939 kN |
| Basic static load rating | C0 | 29 000 kN |
| Fatigue load limit | Pu | 1 460 kN |
| Reference speed | 170 r/min | |
| Limiting speed | 320 r/min | |
| Limiting value | e | 0.21 |
| Calculation factor | Y1 | 3.2 |
| Calculation factor | Y2 | 4.8 |
| Calculation factor | Y0 | 3.2 |
Tolerances of run-out
| Range of section height at inner ring of assembled bearing | tKia | 90 µm |
|---|---|---|
| Range of section height at outer ring of assembled bearing | tKea | 190 µm |
| ISO tolerance class for geoal tolerances | Normal |
Radial internal clearance
| Minimum initial clearance | 480 µm |
| Maximum initial clearance | 710 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
