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Four-row tapered roller bearings, TQI design
Four-row tapered roller bearings can accommodate combined heavy radial and axial loads at low to moderate speeds. They are used almost exclusively in work roll applications such as rolling mills. SKF manufactures four-row tapered roller bearings in TQO and TQI designs, in many variants and with different features…
Product Description
Product Details
Four-row tapered roller bearings can accommodate combined heavy radial and axial loads at low to moderate speeds. They are used almost exclusively in work roll applications such as rolling mills. SKF manufactures four-row tapered roller bearings in TQO and TQI designs, in many variants and with different features.
Very high radial load carrying capacity
Accommodate axial loads in both directions
Axial space-saving solution for roll necks
Low friction
Long service life
Detailed pictures
Parameter table
| Bearing Number | d mm | D mm | B mm | T mm |
| BT4B 332997 | 287.5 | 440 | 330.3 | 284 |
| BT4B 332997 | 287.5 | 440 | 330.3 | 284 |
| BT4B 334056 | 368.3 | 523.875 | 419.96 | 366.712 |
| BT4B 334056 | 368.3 | 523.875 | 419.96 | 366.712 |
| BT4B 334048 | 384.175 | 546.1 | 437.96 | 384.175 |
| BT4B 328305 | 391.071 | 550 | 428.625 | 384.175 |
| 332297 | 400 | 540 | 330 | 295 |
| BT4-8050 | 400 | 540 | 339.96 | 295 |
| BT4B 332813 | 406.4 | 565.15 | 409.575 | 365.125 |
| BT4B 334047 | 415.925 | 590.55 | 479.96 | 419.1 |
| 331999 | 431.8 | 571.5 | 366.713 | 320.675 |
| BT4-8053 | 450 | 595 | 400 | 352 |
| BT4B 334147 | 450 | 595 | 390 | 352 |
| BT4-8052 | 482.6 | 647.7 | 446.5 | 401.638 |
| BT4B 334125 | 555.233 | 761.873 | 692.15 | 536.575 |
| BT4B 334099 | 770 | 1040 | 800 | 650 |
| BT4B 332786 | 872.769 | 1181.1 | 714.375 | 628.65 |
