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. Under normal operating conditions, sealed bearings are almost maintenance-free, keeping service costs and grease consumption low. The design includes features to facilitate relubrication.
| Bore type | Cylindrical |
| d | 220 mm | Bore diameter |
|---|---|---|
| tΔdmp | -0.03 – 0.0 mm | Deviation limits of mid-range bore diameter |
| D | 460 mm | Outside diameter |
| tΔDmp | -0.045 – 0.0 mm | Deviation limits of mid-range outside diameter |
| B | 145 mm | Width |
| tΔBs | -0.08 – 0.0 mm | Deviation limits of ring width |
| d2 | ≈ 270 mm | Shoulder diameter of inner ring |
| D1 | ≈ 406 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. 5 mm | Chamfer dimension |
Normal | ISO tolerance class for dimensions |
| da | min. 240 mm | Diameter of shaft abutment |
|---|---|---|
| da | max. 270 mm | Diameter of shaft abutment |
| Da | max. 440 mm | Diameter of housing abutment |
| ra | max. 4 mm | Radius of fillet |
| AKMI performance class | AKMI Explorer | |
| Basic dynamic load rating | C | 2 844 kN |
| Basic static load rating | C0 | 3 450 kN |
| Fatigue load limit | Pu | 260 kN |
| Limiting speed | 350 r/min | |
| Limiting value | e | 0.3 |
| Calculation factor | Y1 | 2.3 |
| Calculation factor | Y2 | 3.4 |
| Calculation factor | Y0 | 2.2 |
| Range of section height at inner ring of assembled bearing | tKia | 10 µm |
|---|---|---|
| Maximum run-out of inner ring side face to the bore | tSd | 11 µm |
| Range of section height at outer ring of assembled bearing | tKea | 23 µm |
| Perpendicularity of outer ring outside surface | tSD | 7.5 µm |
| ISO tolerance class for geoal tolerances | P5 |
| Minimum initial clearance | 140 µm |
| Maximum initial clearance | 220 µm |
General bearing specifications
Bearing interfaces
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