Four-row cylindrical roller bearings are designed to accommodate very heavy radial loads in combination with medium to high speeds. The AKMI assortment includes many designs and variants, such as bearings with a cage and full complement bearings. Depending on the configuration of the outer and inner rings, the bearings are available in locating as well as non-locating designs.
| Design variant/feature | BC4.20/W33GWI |
| Bore type | Cylindrical with helical groove |
| d | 460 mm | Bore diameter |
|---|---|---|
| D | 650 mm | Outside diameter |
| B | 460 mm | Total bearing width over inner ring(s) |
| C | 424 mm | Total bearing width over outer ring(s) |
| D1 | ≈ 594 mm | Outer ring shoulder diameter |
| F | 510 mm | Raceway diameter inner ring |
| b | 16.7 mm | Width of annular groove |
| K | 9 mm | Diameter lubrication hole (outer ring) |
| r1,2 | min. 11.5 mm | Corner radius/chamfer inner ring |
| α | 20 ° | Chamfer angle inner ring |
| r3,4 | min. 3 mm | Chamfer dimension on the outer ring |
| Basic dynamic load rating | C | 7 810 kN |
|---|---|---|
| Basic static load rating | C0 | 18 300 kN |
| Fatigue load limit | Pu | 1 530 kN |
| Calculation factor | kr | 530 |
General bearing specifications
Bearing interfaces
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