Four-row cylindrical roller bearings are designed to accommodate very heavy radial loads in combination with medium to high speeds. The bearings are optimized for operating conditions typically found in long product mills, where they can provide increased performance and reduced total cost of ownership. Different design combinations of outer rings, inner rings, flange rings, etc. are available to fulfil different application demands. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.
| This bearing can replace | 313822 |
| Design variant/feature | BC4.1/WO |
| Bore type | Cylindrical |
| d | 280 mm | Bore diameter |
|---|---|---|
| D | 390 mm | Outside diameter |
| B | 220 mm | Total bearing width over inner ring(s) |
| C | 220 mm | Total bearing width over outer ring(s) |
| D1 | ≈ 352 mm | Outer ring shoulder diameter |
| F | 312 mm | Raceway diameter inner ring |
| r1,2 | min. 3 mm | Corner radius/chamfer inner ring |
| r3,4 | min. 3 mm | Chamfer dimension on the outer ring |
| s | 3 mm | Permissible axial displacement from the normal position of one bearing ring relative to the other |
| AKMI performance class | AKMI Explorer | |
| Basic dynamic load rating | C | 2 800 kN |
| Basic static load rating | C0 | 5 000 kN |
| Fatigue load limit | Pu | 490 kN |
| Separable bearing ring | LBC4-0107 |
General bearing specifications
Bearing interfaces
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