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. This bearing design offers excellent performance in many types of vibrating machinery. The design includes features to facilitate relubrication. The bearings can be used in a modular system, including housings, sleeves and nuts.
| Bore type | Cylindrical |
| d | 190 mm | Bore diameter |
|---|---|---|
| tΔdmp | -0.015 – 0.0 mm | Deviation limits of mid-range bore diameter |
| D | 400 mm | Outside diameter |
| tΔDmp | -0.028 – 0.0 mm | Deviation limits of mid-range outside diameter |
| B | 132 mm | Width |
| tΔBs | -0.08 – 0.0 mm | Deviation limits of ring width |
| d2 | ≈ 236 mm | Shoulder diameter of inner ring |
| D1 | ≈ 333 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, bore to P5 and outside diameter P6 | ISO tolerance class for dimensions |
| da | min. 210 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 380 mm | Diameter of housing abutment |
| ra | max. 4 mm | Radius of fillet |
| AKMI performance class | AKMI Explorer | |
| Basic dynamic load rating | C | 2 232 kN |
| Basic static load rating | C0 | 2 650 kN |
| Fatigue load limit | Pu | 208 kN |
| Reference speed | 1 200 r/min | |
| Limiting speed | 1 600 r/min | |
| Limiting value | e | 0.35 |
| Calculation factor | Y1 | 1.9 |
| Calculation factor | Y2 | 2.9 |
| Calculation factor | Y0 | 1.8 |
| Permissible rotational acceleration for oil lubrication | 559 m/s² | |
| Permissible linear acceleration for oil lubrication | 167 m/s² |
| 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 | 20 µm |
| Perpendicularity of outer ring outside surface | tSD | 6.5 µm |
| ISO tolerance class for geoal tolerances | P5 |
| Minimum initial clearance | 260 µm |
| Maximum initial clearance | 340 µm |
General bearing specifications
Bearing interfaces
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