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.
| Bore type | Tapered 1:12 |
| d | 400 mm | Bore diameter |
|---|---|---|
| tΔdmp | 0.0 – 0.057 mm | Deviation limits of mid-range bore diameter |
| tΔSL | 0.0 – 0.057 mm | Deviation limits of tapered slope |
| D | 720 mm | Outside diameter |
| tΔDmp | -0.075 – 0.0 mm | Deviation limits of mid-range outside diameter |
| B | 256 mm | Width |
| tΔBs | -0.4 – 0.0 mm | Deviation limits of ring width |
| d2 | ≈ 500 mm | Shoulder diameter of inner ring |
| D1 | ≈ 615 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. 6 mm | Chamfer dimension |
Normal | ISO tolerance class for dimensions |
| Da | max. 694 mm | Diameter of housing abutment |
|---|---|---|
| ra | max. 5 mm | Radius of fillet |
| AKMI performance class | AKMI Explorer | |
| Basic dynamic load rating | C | 6 881 kN |
| Basic static load rating | C0 | 10 400 kN |
| Fatigue load limit | Pu | 680 kN |
| Reference speed | 480 r/min | |
| Limiting speed | 670 r/min | |
| Limiting value | e | 0.35 |
| Calculation factor | Y1 | 1.9 |
| Calculation factor | Y2 | 2.9 |
| Calculation factor | Y0 | 1.8 |
| Range of section height at inner ring of assembled bearing | tKia | 60 µm |
|---|---|---|
| Range of section height at outer ring of assembled bearing | tKea | 120 µm |
| ISO tolerance class for geoal tolerances | Normal |
| Minimum initial clearance | 300 µm |
| Maximum initial clearance | 400 µm |
General bearing specifications
Bearing interfaces
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