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 | 40 mm | Bore diameter |
|---|---|---|
| tΔdmp | -0.008 – 0.0 mm | Deviation limits of mid-range bore diameter |
| D | 90 mm | Outside diameter |
| tΔDmp | -0.013 – 0.0 mm | Deviation limits of mid-range outside diameter |
| B | 33 mm | Width |
| tΔBs | -0.06 – 0.0 mm | Deviation limits of ring width |
| d2 | ≈ 49.9 mm | Shoulder diameter of inner ring |
| D1 | ≈ 74.3 mm | Shoulder/recess diameter of outer ring |
| b | 6 mm | Width of lubrication groove |
| K | 3 mm | Diameter of lubrication hole |
| r1,2 | min. 1.5 mm | Chamfer dimension |
Normal, bore to P5 and outside diameter P6 | ISO tolerance class for dimensions |
| da | min. 49 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 81 mm | Diameter of housing abutment |
| ra | max. 1.5 mm | Radius of fillet |
| AKMI performance class | AKMI Explorer | |
| Basic dynamic load rating | C | 155 kN |
| Basic static load rating | C0 | 140 kN |
| Fatigue load limit | Pu | 15 kN |
| Reference speed | 6 000 r/min | |
| Limiting speed | 8 000 r/min | |
| Limiting value | e | 0.37 |
| Calculation factor | Y1 | 1.8 |
| Calculation factor | Y2 | 2.7 |
| Calculation factor | Y0 | 1.8 |
| Permissible rotational acceleration for oil lubrication | 1 128 m/s² | |
| Permissible linear acceleration for oil lubrication | 304 m/s² |
| Range of section height at inner ring of assembled bearing | tKia | 5 µm |
|---|---|---|
| Maximum run-out of inner ring side face to the bore | tSd | 8 µm |
| Range of section height at outer ring of assembled bearing | tKea | 10 µm |
| Perpendicularity of outer ring outside surface | tSD | 4.5 µm |
| ISO tolerance class for geoal tolerances | P5 |
| Minimum initial clearance | 60 µm |
| Maximum initial clearance | 80 µm |
General bearing specifications
Bearing interfaces
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