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 |
313839
|
| SKF performance class |
SKF Explorer
|
| Design variant/feature |
BC4.1/WO
|
| Bore type |
Cylindrical
|
| d |
220 mm
|
Bore diameter |
|---|---|---|
| D |
310 mm
|
Outside diameter |
| B |
192 mm
|
Total bearing width over inner ring(s) |
| C |
192 mm
|
Total bearing width over outer ring(s) |
| D1 |
≈ 279.9 mm
|
Outer ring shoulder diameter |
| F |
246 mm
|
Raceway diameter inner ring |
| r1,2 |
min. 2.1 mm
|
Corner radius/chamfer inner ring |
| r3,4 |
min. 2.1 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 |
| Basic dynamic load rating | C |
1 900 kN
|
|---|---|---|
| Basic static load rating | C0 |
3 550 kN
|
| Fatigue load limit | Pu |
355 kN
|
| Mass bearing |
49 kg
|
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