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Four-row tapered roller bearings, TQO 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
\nProduct Details
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\nFour-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.
\nVery high radial load carrying capacity
\nAccommodate axial loads in both directions
\nAxial space-saving solution for roll necks
\nLow friction
\nLong service life
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\nDetailed pictures
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\nParameter table
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| Bearing Number | d mm | D mm | B mm | T mm |
| 331138 AG | 139.7 | 200.025 | 157.162 | 160.34 |
| 331480 G | 177.8 | 247.65 | 192.088 | 192.088 |
| BT4-0027 | 198.438 | 284.162 | 225.425 | 225.425 |
| BT4-0013 | 206.375 | 282.575 | 190.5 | 190.5 |
| BT4-0021 G/HA1 | 206.375 | 282.575 | 190.5 | 190.5 |
| BT4-0035 E8/C355 | 220 | 295 | 315 | 315 |
| BT4-0040 E8/C355 | 220.662 | 314.325 | 239.712 | 239.712 |
| BT4-0020/HA1 | 240 | 338 | 248 | 248 |
| 330782 AG | 241.478 | 349.148 | 228.6 | 228.6 |
| 330862 B | 244.475 | 327.025 | 193.675 | 193.675 |
| BT4-0039 E8/C355 | 254 | 358.775 | 269.875 | 269.875 |
| BT4-0044 E8/C560 | 266.7 | 355.6 | 230.188 | 228.6 |
| BT4B 331168 B | 269.875 | 381 | 282.575 | 282.575 |
| BT4-0012 | 276.225 | 393.7 | 269.875 | 269.875 |
| BT4-0049 E81/C510 | 279.4 | 393.7 | 269.88 | 269.88 |
| BT4-0048 E8/C475 | 279.578 | 380.898 | 244.48 | 250 |
| BT4-0026 A/PEX | 280 | 406.4 | 298.45 | 298.45 |
| BT4-0015 | 285.75 | 380.898 | 244.475 | 244.475 |
| BT4-0047 E8/C475 | 285.75 | 380.898 | 244.48 | 250 |
| BT4B 331452 G/HA1 | 288.925 | 406.4 | 298.45 | 292.45 |
| BT4B 331968 BG/HA1 | 292.1 | 422.275 | 269.875 | 269.875 |
| 331492 | 304.648 | 438.048 | 280.99 | 279.4 |
| BT4B 328909 | 304.8 | 501.65 | 336.55 | 336.55 |
| 330758 BG | 304.902 | 412.648 | 266.7 | 266.7 |
| BT4-0004 G/HA1 | 304.902 | 412.648 | 266.7 | 266.7 |
| BT4-8093 | 310 | 430 | 310 | 310 |
| BT4-8182 E8/C675 | 317.5 | 422.275 | 269.875 | 269.875 |
| BT4B 331161 BG/HA1 | 317.5 | 447.675 | 327.025 | 327.025 |
| BT4B 332647 G/HA1 | 330.2 | 444.5 | 301.625 | 301.625 |
| BT4-8113 E2/C500 | 330.302 | 438.023 | 247.65 | 254 |
| 331381 | 333.375 | 469.9 | 342.9 | 342.9 |
| BT4-8160 E8/C475 | 343.052 | 457.098 | 254 | 254 |
| BT4B 328817 | 343.052 | 457.098 | 254 | 254 |
| BT4B 331228 | 346.075 | 488.95 | 358.775 | 358.775 |
| BT4-8070 | 347.662 | 469.9 | 292.1 | 292.1 |
| 331092 A | 347.663 | 469.9 | 292.1 | 292.1 |
| 331271 | 355.6 | 488.95 | 317.5 | 317.5 |
| BT4-8162 | 355.6 | 482.6 | 265.113 | 269.875 |
| BT4B 328870 | 355.6 | 482.6 | 265.113 | 269.875 |
| BT4B 328912 | 355.6 | 488.95 | 317.5 | 317.5 |
| 332059 | 360 | 510 | 380 | 380 |
| 331159 A | 368.3 | 523.875 | 382.588 | 382.588 |
| BT4-8033 G/HA1 | 380 | 560 | 390 | 360 |
| BT4-8086 G/HA1 | 380 | 540 | 300 | 300 |
| 331149 E/C675 | 384.175 | 546.1 | 400.05 | 400.05 |
| BT4-8025 | 384.175 | 546.1 | 400.05 | 400.05 |
| BT4B 334128/HA1 | 384.175 | 546.1 | 400.05 | 400.05 |
| BT4B 334042 | 385.762 | 514.35 | 317.5 | 317.5 |
| BT4B 332824/HA1 | 395 | 545 | 268 | 288.9 |
| BT4-8147 G/HA1 | 400 | 600 | 308 | 308 |
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