SKF four row tapered roller bearing BT4B series
- Courier
- In detail
- BrandSkf
- Country of manufactureSweden
- Plant manufacturer斯凯孚
- Application areaFor internal combustion engines
- Number of rowsSingle row
SKF four row bearing standard code are TQO and TQI series, TQO structure has two pairs of tapered roller bearing and cage, two rows of roller arranged face to face, this design of bearing is most widely used in taper roller bearing series.
TQI design bearings have paired two rows of rollers, back to back decorated, this kind of bearing is for limited use occasions, it is mainly used for high rigidity and need to bear considerable negative moment. Four row tapered roller bearings are generally by the interference fit which is installed on the vertical roll rolling mill, so often stay cone hole.
Contact: sales(at)hzskf.cn
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Part NO. and dimensions are for SKF four row tapered roller bearings as below,
| ID(mm) | OD(mm) | Depth(mm) | SKF Part NO.: |
| 254 | 358,775 | 257,175 | BT4B 332610/HA1 |
| 258,762 | 358,775 | 257,175 | BT4B 332961/HA1 |
| 279,4 | 407 | 288 | BT4B 328345/HA1 |
| 287,5 | 440 | 284 | BT4B 332997 B/HA1 |
| 287,5 | 440 | 284 | BT4B 332997/HA1 |
| 317,5 | 422,275 | 261,938 | BT4B 332642/HA1 |
| 320 | 422,275 | 261,424 | BT4B 328344/HA1 |
| 320 | 422,275 | 261,424 | BT4B 332716/HA1 |
| 320 | 422,275 | 261,424 | BT4B 332962/HA1 |
| 323,452 | 447,675 | 323,85 | BT4B 332668/HA1 |
| 333,375 | 469,9 | 328,612 | BT4B 328083/HA1 |
| 347,662 | 469,9 | 246,063 | 331807 |
| 352,425 | 488,95 | 342,9 | BT4B 332654/HA1 |
| 368,3 | 523,875 | 366,712 | BT4B 334011 |
| 384,175 | 546,1 | 384,175 | BT4B 331809/HA1 |
| 390,525 | 546,1 | 384,175 | BT4B 332664/HA1 |
| 391,071 | 550 | 384,175 | BT4B 328305/HA1 |
| 400 | 540 | 295 | 332297 |
| 406,4 | 590,55 | 381 | BT4B 328923/HA1 |
| 415,925 | 590,55 | 419,1 | BT4B 332814/HA1 |
| 419,1 | 590,55 | 419,1 | BT4B 328203/HA1 |
| 419,1 | 590,64 | 419,1 | BT4B 328564/HA4 |
| 431,8 | 571,5 | 320,675 | 331999 |
| 431,8 | 647,7 | 338,138 | BT4B 332590/HA1 |
| 447,675 | 635 | 446,088 | BT4B 328922/HA1 |
| 450 | 595 | 352 | BT4B 334147/HA1 |
| 453,39 | 635 | 446,088 | BT4B 332822/HA1 |
| 482,6 | 615,95 | 317,5 | BT4B 328268/HA1 |
| 488,95 | 679,45 | 479,425 | BT4B 332760/HA1 |
| 510 | 655 | 362 | BT4B 328732/HA1 |
| 515 | 700 | 370 | BT4B 334097/HA1 |
| 530,225 | 736,6 | 519,112 | BT4B 332933/HA1 |
| 547,688 | 761,873 | 536,575 | BT4B 332659/HA1 |
| 555,233 | 761,873 | 536,575 | BT4B 334125/HA1 |
| 581,025 | 812,8 | 571,5 | BT4B 332658/HA4 |
| 604,838 | 787,4 | 369,888 | BT4B 328045/HA1 |
| 644,525 | 857,25 | 523,875 | BT4B 332934/HA1 |
| 669,925 | 933,45 | 649,288 | BT4B 332928/HA1 |
| 744,538 | 1035,05 | 727,075 | BT4B 332943/HA4 |
| 749,3 | 990,6 | 577 | BT4B 332596/HA4 |
| 770 | 1040 | 650 | BT4B 334099/HA4 |
| 777,672 | 1079,5 | 755,65 | BT4B 332959/HA4 |
| 777,875 | 1079,5 | 755,65 | BT4B 332956/HA4 |
| 828,675 | 1143 | 733,425 | BT4B 332663/HA4 |
| 863,6 | 1130,3 | 644,525 | BT4B 332571/HA4 |
| 872,769 | 1,179,805 | 628,65 | BT4B 332960/HA4 |
| 872,769 | 1181,1 | 628,65 | BT4B 332786/HA4 |
| 872,847 | 1181,1 | 628,65 | BT4B 328956/HA4 |
| 879,475 | 1219,2 | 838,2 | BT4B 328074/HA4 |
| 889 | 1219,2 | 784,225 | BT4B 332602/HA4 |
| 896,903 | 1264 | 680 | BT4B 334081/HA4 |
| 1,004,634 | 1308,1 | 730,25 | BT4B 332720/HA4 |
The particular advantages of these four-row tapered roller bearings without intermediate rings which have been developed by SKF include
1. simpler mounting because of fewer components
2. improved load distribution over the four rows of rollers, leading to less wear and longer service life
3. simpler axial location on the roll necks because of reduced inner ring width tolerances
4. dimensional equivalence to conventional four-row tapered roller bearings with intermediate