SKF BC4B 457939 VAA four-row cylindrical roller bearings
Brand:SKF
Original:GERMANY
Type:Cylindrical roller bearing
Item:SKF BC4B 457939 VAA
Inner:356.67mm
Outner:550mm
Thickness:400mm
Weight:335kg
Description
SKF four-row cylindrical roller bearings are available in several designs:
with a cylindrical or tapered bore open or sealed Four-row cylindrical roller bearings are used almost exclusively for the roll necks of rolling mill stands, calenders and roller presses. Because they are normally mounted with an interference fit on the roll neck, four-row cylindrical roller bearings are well suited for rolling mill applications where the rolling speed is high.
Because four-row cylindrical roller bearings can accommodate only radial loads, they are mounted together with deep groove or angular contact ball bearings, or with tapered roller bearings (either radial or thrust design) which accommodate the axial loads.
SKF BC4B 457939 VAA four-row cylindrical roller bearings
Technical data of SKF BC4B 457939 VAA four-row cylindrical roller bearings
Design
| Design variant/feature | BC4T.3/W20 | |||
Dimensions
| d | 356.67 | mm | |
| D | 550 | mm | |
| B | 400 | mm | |
| C | 400 | mm | |
| D1 | ≈ | 482.6 | mm |
| F | 423.7 | mm | |
| K | 12 | mm | |
| r1,2 | min. | 3.2 | mm |
| r3,4 | min. | 4 | mm |
| β | 45 | ° |
Tapered bore, taper 1:12
Calculation data
| Basic dynamic load rating | C | 5280 | kN | |
| Basic static load rating | C0 | 15000 | kN | |
| Fatigue load limit | Pu | 1290 | kN | |
| Calculation factor | kr | 700 |
Mass
| Mass bearing | 335 | kg |
