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ZWA British-system Four-row Tapered Roller Bearing









British-system Four-row Tapered Roller Bearing


bore 247,650-304,800mm

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 247,650-304,800mm
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
247,650 400,050 253,995 249,235 295 346 1.5 6.4 614096B 2920 6300 0.40 1.7 2.5 1.6 120
9,7500 15,7500 9,9998 9,8124 295 346 1.5 6.4 (EE220975DW-1575-1576D) 2920 6300 0.40 1.7 2.5 1.6 120
254 358,775 269,875 269,875 279 319 1.5 3.3 331275A 2860 7100 0.33 2 3 2 88.0
10,0000 14,1250 10,6250 10,6250 279 319 1.5 3.3 (M249749DW-710-710D) 2860 7100 0.33 2 3 2 88.0
260 440 298,500 298,500 300 372 2.5 5 BT4B328551/HA1 3910 7350 0.54 1.25 1.8 1.3 190
10,2362 17,3228 11,7250 11,7250 300 372 2.5 5 BT4B328551/HA1 3910 7350 0.54 1.25 1.8 1.3 190
266,700 355,600 228,600 230,188 288 318 1.5 3.3 330822B 2050 5600 0.37 1.8 2.7 1.8 65.5
10,5000 14,0000 9,0000 9,0663 288 318 1.5 3.3 (76589DW-520-520D) 2050 5600 0.37 1.8 2.7 1.8 65.5
269,875 381,000 282,575 282,575 296 339 3.3 3.3 BT4B331168B 3080 7500 0.33 2 3 2 105
10,6250 15,0000 11,1250 11,1250 296 339 3.3 3.3 (M252349DW-310-310D) 3080 7500 0.33 2 3 2 105
276,225 393,700 269,875 269,875 302 351 1.5 6.4 331288 2970 6400 0.40 1.7 2.5 1.6 100
10,8750 15,5000 10,6250 10,6251 302 351 1.5 6.4 (EE275109D-155-156D) 2970 6400 0.40 1.7 2.5 1.6 100
279,400 381 269,875 269,875 300 340 1.5 3.3 BT4B328293/HA1 2920 7500 0.35 1.9 2.9 1.8 91.0
11,0000 15,0000 10,6250 10,6250 300 340 1.5 3.3 BT4B328293/HA1 2920 7500 0.35 1.9 2.9 1.8 91.0
279,578 380,898 244,475 244,475 308 337 1.5 3.3 330540A 2290 6400 0.43 1.6 2.3 1.6 86.0
11,0070 14,9960 9,6250 9,6250 308 337 1.5 3.3 (LM654644DW-610-610D) 2290 6400 0.43 1.6 2.3 1.6 86.0
279,578 380,898 244,475 244,475 308 337 1.5 3.3 330540AG 2290 6400 0.43 1.6 2.3 1.6 86.0
11,0070 14,9960 9,6250 9,6250 308 337 1.5 3.3 (LM654644DGW-610-610D) 2290 6400 0.43 1.6 2.3 1.6 86.0
285,750 380,898 244,475 244,475 308 337 1.5 3.3 330337A 2290 6400 0.43 1.6 2.3 1.6 81.0
11,2500 14,9960 9,6250 9,6250 308 337 1.5 3.3 (LM654648DW-610-610D) 2290 6400 0.43 1.6 2.3 1.6 81.0
285,750 380,898 244,475 244,475 308 337 1.5 3.3 330337AG 2290 6400 0.43 1.6 2.3 1.6 81.0
11,2500 14,9960 9,6250 9,6250 308 337 1.5 3.3 (LM654648DGW-610-610D) 2290 6400 0.43 1.6 2.3 1.6 81.0
288,925 406,400 298,450 298,450 314 361 3.3 3.3 BT4B331452/HA1 3580 9000 0.33 2 3 2 125
11,3750 16,0000 11,7500 11,7500 314 361 3.3 3.3 (M255449DW-410-410D) 3580 9000 0.33 2 3 2 125
288,925 406,400 298,450 298,450 314 361 3.3 3.3 BT4B331452G/HA1 3580 9000 0.33 2 3 2 125
11,3750 16,0000 11,7500 11,7500 314 361 3.3 3.3 (M255449DGW-410-410D) 3580 9000 0.33 2 3 2 125
300 440 279,400 280,988 334 380 3.3 4.8 BT4B328725G/HA1 3190 7800 0.43 1.6 2.3 1.6 145
11,8110 17,3228 11,0000 11,0625 334 380 3.3 4.8 BT4B328725G/HA1 3190 7800 0.43 1.6 2.3 1.6 145
300 460 388,500 388,500 336 400 5 5 BT4B332472 5390 12500 0.33 2 3 2 240
11,8110 18,1102 15,2953 15,2953 336 400 5 5 BT4B332472 5390 12500 0.33 2 3 2 240
304,800 419,100 269,875 269,875 328 378 1.5 6.4 BT4B331687/HA1 3360 8150 0.33 2 3 2 110
12,0000 16,5000 10,6250 10,6250 328 378 1.5 6.4 (M257149DW-110-110D) 3360 8150 0.33 2 3 2 110
304,800 482,600 377,825 365,125 348 416 3.3 3.3 330693C 5010 10400 0.35 1.9 2.9 1.8 265
12,0000 19,0000 14,8750 14,3750 348 416 3.3 3.3 330693C 5010 10400 0.35 1.9 2.9 1.8 265

Targeting at producing high-end Bearings.









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