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British-system Four-row
Tapered Roller Bearing

British-system Four-row Tapered Roller Bearing

bore 254-510mm

Tapered roller bearing is designed in such a way that cone apexes of inner ring raceway, outer ring raceway and roller raceway intersects on one point of its central line. ZWA’s tapered roller bearings can be divided into both metric and imperial single-row, double-row and four-row series.

Basic Type

simple drawing of four row tapered roller bearing
simple drawing of four row tapered roller bearing

The products include

British-system Four-row Tapered Roller Bearing
d 254-510mm
Basic Size Designation Basic load rating Calculation Coefficient Mass
d D T B d1≈ D1≈ r1.2min r3.4min dynamic static e Y1 Y2 Yo
C Co
mm kN - kg
254 358,775 257,175 292,100 303 343 3.5 1.5 BT4B332610/HA1 2860 7100 0.33 2 3 2 90.5
10,0000 14,1250 10,1250 11,5000 303 343 3.5 1.5 (M249749-749DW-710D) 2860 7100 0.33 2 3 2 90.5
279,400 407 288 320 343 388 3.5 1.5 BT4B328345/HA1 3580 9000 0.33 2 3 2 140
11,0000 16,0236 11,3386 12,5984 343 388 3.5 1.5 (M255449-440DW-411) 3580 9000 0.33 2 3 2 140
317,500 422,275 261,938 290,514 365 405 6.5 1.5 BT4B332642/HA1 3080 8150 0.31 2.2 3.3 2.2 110
12,5000 16,6250 10,3125 11,4375 365 405 6.5 1.5 (LM258649T-646TD-649G-610) 3080 8150 0.31 2.2 3.3 2.2 110
333,375 469,900 328,612 366,712 398 308 6.4 1.5 BT4B328083/HA1 4570 11400 0.33 2 3 2 190
13,1250 18,5000 12,9375 14,4375 398 308 6.4 1.5 BT4B328083/HA1 4570 11400 0.33 2 3 2 190
347,662 469,900 246,063 280,194 399 451 3.3 1.5 331807 3360 8250 0.33 2 3 2 135
13,6875 18,5000 9,6875 11,0313 399 451 3.3 1.5 331807 3360 8250 0.33 2 3 2 135
368,300 523,875 366,712 411,162 440 499 6.4 1.5 BT4B334011 5830 15000 0.33 2 3 2 275
14,5000 20,6250 14,4375 16,1875 440 499 6.4 1.5 BT4B334011 5830 15000 0.33 2 3 2 275
384,175 546,100 384,175 428,625 458 520 6.4 1.5 332297 6440 16600 0.33 2 3 2 300
15,1250 21,5000 15,1250 16,8750 458 520 6.4 1.5 332297 6440 16600 0.33 2 3 2 300
400 540 295 330 463 520 3.3 1.5 BT4B328923/HA1 4840 12500 0.31 2.2 3.3 2.2 210
15,7480 21,2598 11,6142 12,9921 463 520 3.3 1.5 BT4B328923/HA1 4840 12500 0.31 2.2 3.3 2.2 210
406,400 590,550 381 434,975 486 531 9.7 1.5 BT4B328923/HA1 6930 16600 0.33 2 3 2 370
16,0000 23,2500 15,0000 17,1250 486 531 9.7 1.5 BT4B328923/HA1 6930 16600 0.33 2 3 2 370
415,925 590,550 419,100 469,900 454 523 6.4 1.5 BT4B332814/HA1 7210 19300 0.33 2 3 2 405
16,3750 23,2500 16,5000 18,5000 454 523 6.4 1.5 BT4B332814/HA1 7210 19300 0.33 2 3 2 405
431,800 571,500 320,675 366,713 499 550 6.4 1.5 331999 4950 14000 0.44 1.5 2.3 1.4 250
17,0000 22,5000 12,6250 14,4375 499 550 6.4 1.5 331999 4950 14000 0.44 1.5 2.3 1.4 250
431,800 647,700 338,138 387,350 517 598 6.4 1.5 BT4B332590/HA1 6600 15000 0.33 2 3 2 420
17,0000 25,5000 13,3125 15,2500 517 598 6.4 1.5 BT4B332590/HA1 6600 15000 0.33 2 3 2 420
447,675 635,000 446,088 496,888 534 605 6.4 1.5 BT4B328922/HA1 8250 22000 0.33 2 3 2 475
17,6250 25,0000 17,5625 19,5625 534 605 6.4 1.5 BT4B328922/HA1 8250 22000 0.33 2 3 2 475
450 595 352 390 522 573 6 1.5 BT4B334147/HA1 5500 16300 0.33 2 3 2 295
17,7165 23,4252 13,8583 15,3543 522 573 6 1.5 BT4B334147/HA1 5500 16300 0.33 2 3 2 295
482,600 615,950 317,500 355,600 546 596 6.4 1.5 BT4B328268/HA1 5120 15300 0.33 2 3 2 245
19,0000 24,2500 12,5000 14,0000 546 596 6.4 1.5 (M272249DW-249W-210D) 5120 15300 0.33 2 3 2 245
510 655 362 405 580 635 6.4 1.5 BT4B328732/HA1 6270 19000 0.33 2 3 2 330
20,0787 25,7874 14,2520 15,9449 580 635 6.4 1.5 BT4B328732/HA1 6270 19000 0.33 2 3 2 330

Targeting at producing high-end Bearings.

ZWA Chinese bearing manufacturer

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