Four-Row Tapered Roller Bearings

● Four-row tapered roller bearings have a wide range ● Simplified installation due to fewer components ● The load distribution of four-row rollers is improved to reduce wear and prolong service life ● Due to the reduction of inner ring width tolerance, the axial positioning on the roll neck is simplified ● The dimensions are the same as those of conventional four-row tapered roller bearings with intermediate rings

Products Details

Four-row tapered roller bearings can accommodate combined (radial and axial) loads at low to moderate speeds. They are used almost exclusively in work roll applications such as rolling mills. Four rows of tapered roller bearings have been successfully used in the bearing configuration of rolling mills around the world with low to medium speed rolling speeds. Because of its design, the bearing can withstand radial loads in addition to the axial loads present in such applications, and generally no additional thrust bearings are required in the bearing configuration. This means that the journal of the roll can be relatively short, and the housings on both sides of the roll can be of the same design. Four-row tapered roller bearings are the most commonly used roller diameter bearings. This structure has a large bearing capacity and can simultaneously bear combined radial and axial loads based on radial loads. Its radial load capacity is about 2.5 to 3.5 times that of single row bearings, and it can withstand large radial loads and axial loads.● Simplified installation due to fewer components ● Improved load distribution of four-row rollers, resulting in reduced wear and longer service life ● The axial positioning on the roll journal is simplified due to the reduction of the inner ring width tolerance ● The dimensions are the same as those of conventional four-row tapered roller bearings with intermediate ringsFour row tapered roller bearings are used in heavy machines such as large cold and hot mills in plastic machinery industry.
SIZE DIMENSIONS Basic load ratings Fatigue load limit
dynamic static
d[mm] D[mm] B[mm] T[mm] C[kN] C0[kN] Pu[kN]
331138 AG 139.7 200.025 157.162 160.34 858 2080 204
BT4-0010 G/HA1C400VA903 177.8 247.65 192.088 192.088 1020 2500 232
331480 G 177.8 247.65 192.088 192.088 1230 3000 280
BT4-0027 AG/HA1 198.438 284.162 225.425 225.425 1760 3750 355
BT4-0013 G/HA1C400VA903 206.375 282.575 190.5 190.5 1140 2500 240
BT4-0021 G/HA1 206.375 282.575 190.5 190.5 1400 3350 305
BT4-0035 E8/C355 220 295 315 315 1860 4050 360
BT4-0040 E8/C355 220.662 314.325 239.712 239.712 2120 4000 365
BT4-0020/HA1 240 338 248 248 2550 5500 500
330862 B 244.475 327.025 193.675 193.675 1830 4300 390
BT4-0039 E8/C355 254 358.775 268.875 268.875 3050 5700 510
BT4B 328551/HA1 260 440 298.5 298.5 3910 7350 670
BT4B 331487 G/HA1 260.35 422.275 314.325 317.5 4130 8000 710
BT4B 328209 G/HA1C455 266.7 355.6 230.188 228.6 2200 5600 500
BT4B 331168 B 269.875 381 282.575 282.575 3080 7500 655
BT4-0012 G/HA1C500VA901 276.225 393.7 269.875 269.875 2750 5850 530
BT4-0011 G/HA1C500VA901 279.4 393.7 269.875 269.875 2750 5850 530
330540 AG 279.578 380.898 244.475 244.475 2290 6400 540
BT4B 332441 G/HA1 280 460 324 324 4680 9300 815
BT4-8116 E1/C525 285 400 340 340 3650 7650 655
BT4-0015 G/HA1C400VA903 285.75 380.898 244.475 244.475 2200 5500 475
330337 AG 285.75 380.898 244.475 244.475 2290 6400 540
BT4B 331452 G/HA1 288.925 406.4 298.45 292.45 3580 9000 750
BT4B 328725 G/HA1 300 440 280.988 279.4 3190 7800 670
BT4B 334126 G/HA1VA901 300 440 280.99 279.4 3080 6700 585
BT4B 334008 G/HA1VA901 304.648 438.048 280.99 279.4 3080 6700 585
331492 304.648 438.048 280.99 279.4 3080 6950 585
BT4-8057 G/HA1VA901 304.8 419.1 269.875 269.875 2920 6700 570
BT4-8061 G/HA1C400VA901 304.8 495.3 342.9 342.9 5120 9300 780
BT4-0016 G/HA1C445VA901 304.902 412.648 266.7 266.7 2700 6700 570
330758 BG 304.902 412.648 266.7 266.7 2970 7500 640
BT4-0004 G/HA1 304.902 412.648 266.7 266.7 3190 7500 640
BT4B 334076 G/HA1VA901 305 438.048 280.99 279.4 3080 6700 585
BT4-8127 E1/C700 310 430 350 350 4750 9150 765
330870 BG 317.5 422.275 269.875 269.875 3360 8150 680
BT4B 328952 A/HA1 317.5 438.15 276.225 276.225 3520 8300 695
BT4-8174 E8/C675 330.2 444.5 301.625 301.625 4250 8800 735
BT4-8174 E81/C675 330.2 444.5 301.625 301.625 4250 8800 735
BT4-8113 E2/C500 330.302 438.023 247.65 254 3400 6400 550
BT4-8017/HA1C600VA941 333.375 469.9 342.9 342.9 4130 10200 830
331381 333.375 469.9 342.9 342.9 4897 11400 930
BT4B 332963/HA1 340 520 323.5 323.5 5230 10400 880
BT4B 332963 B/HA1 340 520 323.5 323.5 5610 10400 880
BT4B 331553/HA1 342.9 571.5 342.54 342.9 6270 11600 950
BT4B 334106 G/HA1VA901 343.052 457.098 254 254 2330 6000 510
BT4B 334033 G/HA1VA901 343.052 457.098 254 254 2510 6100 530
BT4-8160 E8/C475 343.052 457.098 254 254 3600 7100 600
BT4-8160 E81/C400 343.052 457.098 254 254 3600 7100 600
BT4-8160 E81/C475 343.052 457.098 254 254 3600 7100 600
BT4B 328817 E1/C475 343.052 457.098 254 254
BT4B 328986 G/HA1VA901 343.052 457.098 323.85 254 2700 6400 540
BT4B 331228 G/HA1C200 346.075 488.95 358.775 358.775 5280 12500 1020
BT4-8070 G/HA1VA901 347.662 469.9 292.1 292.1 3910 8500 710
BT4-8117 E1/C475 350 480 420 420 4750 10200 815
BT4-8162 E8/C480 355.6 482.6 265.113 269.875 4150 8150 670
BT4-8162 E81/C480 355.6 482.6 265.113 269.875 4150 8150 670
BT4B 328870 EX1/C300 355.6 482.6 265.113 269.875
BT4B 328912 G/HA1VA901 355.6 488.95 317.5 317.5 4130 10000 830
331271 355.6 488.95 317.5 317.5 4130 11000 880
331271 BG 355.6 488.95 317.5 317.5 4130 11000 880
BT4B 328912 E3/C675 355.6 488.95 317.5 317.5 5100 10000 830
332059 360 510 380 380 5610 14300 1120
BT4B 328159/HA1 360 540 280 280 4400 9000 735
BT4-8015 G/HA1 360 540 325 325 5720 10800 900
BT4B 332188/HA1 374.65 501.65 250.825 260.35 3360 8150 670
BT4-8086 G/HA1 380 540 300 300 4180 10000 800
BT4B 328294/HA1 380 560 325 325 5500 11800 950
BT4-8025 G/HA1C300VA903 384.175 546.1 400.05 400.05 6160 15000 1180
BT4-8025 G/HA1VA903 384.175 546.1 400.05 400.05 6160 15000 1180
331149 E/C675 384.175 546.1 400.05 400.05 8000 16600 1290
BT4B 334042 G/HA1VA901 385.762 514.35 317.5 317.5 3910 10000 780
BT4B 332824 E/C475 395 545 268 288.9 4800 9500 750
BT4-8147 G/HA1 400 600 308 308 5500 11000 865
BT4-8161 E8/C500 406.4 546.1 288.925 288.925 5100 10200 815
BT4-8161 E81/C500 406.4 546.1 288.925 288.925 5100 10200 815
BT4B 334093 G/HA1VA901 406.4 546.1 330 330 4020 10200 815
BT4B 334092 AG/HA1 406.4 546.1 330 330 5010 13200 1000
BT4B 329004 E1/C575 409.575 546.1 334.962 334.962 5600 12000 930
BT4-8166 E8/C350 409.575 546.1 334.962 334.962 5850 12500 965
BT4-8166 E81/C350 409.575 546.1 334.962 334.962 5850 12500 965
BT4B 331333 E/C575 409.575 546.1 334.962 334.962
BT4B 331333 E/C350 409.575 546.151 334.962 334.962 5700 13200 1000
BT4B 334130 G/HA1VA903 416 574 440 440 6050 17000 1270
BT4B 328826 G/HA1 420 560 437 437 5830 16300 1220
BT4B 334095 G/HA4VA901 430 575 380 380 5230 14300 1100
BT4-8169 E81/C450 431.8 571.5 279.4 279.4 4650 10000 800
BT4B 331226/HA1 431.8 571.5 336.55 336.55 4950 14000 1060
BT4-8170 E81/C550 431.8 571.5 336.55 336.55 5850 13400 1020
BT4B 328829/HA1 440 580 420 420 6050 17600 1320
332313 440 650 353.5 353.5 6600 15000 1160
BT4B 328161/HA1 450 580 450 450 6160 19600 1400
BT4-8023 AG/HA1VA902 450 595 368 368 5280 13700 1040
BT4-8023 G/HA1VA919 450 595 368 368 5280 13700 1040
BT4-8173 E8/C725 450 595 368 368 6550 15300 1160
BT4-8173 E81/C725 450 595 368 368 6550 15300 1160
BT4B 332773 E/C725 450 595 368 368
BT4B 328365 EX/C725 450 595 404 404 6800 16300 1220
331169 E/C500 457.2 596.9 276.225 279.4 4570 10800 830
BT4B 334078 G/HA1VA901 475 600 368 368 4730 14000 1040
BT4B 329007/HA1 475 660 450 450 8580 22400 1660
BT4B 334116 G/HA1VA901 479.425 679.45 495.3 495.3 8580 22400 1660
BT4-8163 E8/C725 482.6 615.95 330.2 330.2 6300 14300 1080
BT4-8163 E81/C725 482.6 615.95 330.2 330.2 6300 14300 1080
BT4-8163 E8A/C725 482.6 615.95 330.2 330.2 6300 14300 1080
BT4B 328974 G/HA1VA901 482.6 615.95 402.05 402.05 5610 17300 1290
BT4B 328887 G/HA1VA901 482.6 615.95 406.4 330.2 4950 13700 1060
BT4B 334072 G/HA1VA901 482.6 615.95 419.1 330.2 4950 13700 1060
BT4B 334072 BG/HA1VA903 482.6 615.95 419.1 330.2 5280 13700 1060
BT4-8062 G/HA1VA901 482.6 615.95 420 420 5500 15300 1120
BT4B 328773 G/HA1 482.6 630 420 420 6600 19300 1400
BT4B 331259 BG/HA1C325 482.6 647.7 417.512 417.512 7650 20000 1460
BT4B 328391 G/HA1 488.95 622.3 365.125 365.125 6060 17300 1290
BT4B 334115 G/HA1VA901 489.026 634.873 320.675 320.675 4020 11200 865
331090 E/C700 489.026 634.873 320.675 320.675
BT4-8135 E/C750 490 625 385 385 7100 16300 1220
BT4B 328524/HA1 500 720 400 400 8250 20400 1460
BT4B 331499 G/HA1 501.65 673.1 400.05 387.35 7210 19300 1460
BT4-8167 E8/C775 510 655 377 379 7650 17600 1320
BT4-8167 E81/C775 510 655 377 379 7650 17600 1320
BT4-8045 G/HA1VA901 514.35 673.1 422.275 422.275 6820 19000 1370
BT4B 328965/HA1 515 700 420 420 7920 21600 1560
BT4B 334038 G/HA3 540 690 434 400 7040 21200 1500
BT4B 334028 G/HA1VA901 540 690 434 434 7040 21200 1500
BT4-8038 G/HA1VA901 540 690 440 440 7480 21200 1500
BT4B 328864 G/HA4VA901 558.8 736.6 322.262 322.262 5830 14300 1060
BT4B 334136 G/HA1VA901 558.8 736.6 455.612 457.2 7920 23200 1630
BT4-8153 E/C775 560 700 405 405 8000 21200 1460
BT4-8123 E/C775 560 920 618 618 17300 39000 2550
BT4B 334144 G/HA1VA901 571.5 812.8 593.725 593.725 11900 33500 2280
331148 A 584.2 762 396.875 401.638 7650 22400 1560
BT4B 328314 G/HA1 584.2 901.7 523.08 539.747 13400 28000 2000
BT4B 331093 BG/HA1 585.788 771.525 479.425 479.425 10600 30000 2040
331625 603.25 857.25 622.3 622.3 14700 40500 2700
BT4B 328871 G/HA1VA901 609.6 787.4 361.95 361.95 6820 18600 1370
BT4B 328871 BG/HA1VA902 609.6 787.4 361.95 361.95 7370 18600 1370
331175 A 609.6 787.4 361.95 361.95 7370 21200 1500
331175 BG/C355 609.6 787.4 361.95 361.95 7370 21200 1500
BT4B 334108 G/HA4VA901 609.6 813.562 479.425 479.425 9680 27500 1900
331925 609.6 813.562 479.425 479.425 10600 30500 2080
BT4-8031 E/C800 625 815 480 480
BT4B 334141 G/HA1VA901 635 901.7 654.05 654.05 14500 41500 2700
BT4-8064 G/HA1VA901 648 1030 592 592 16800 38000 2550
BT4B 332827 E/C850 650 1030 560 560
BT4-8009 G/HA1VA901 650 1030 592 592 16800 38000 2550
BT4-8036 G/HA1 650 1040 610 610 17600 36500 2500
BT4-8037 G/HA1VA901 650 1040 610 610 17600 36500 2500
BT4B 328511/HA1 660 855 318.5 318.5 7040 18600 1320
BT4B 334002 G/HA1VA901 660 855 400.842 318.48 6270 17300 1220
BT4-8060 G/HA4VA901 660 1070 648 648 19000 38000 2500
BT4B 332833 G/HA4 660 1070 648.002 648.002 19400 41500 2750
331190 660.4 812.8 365.125 365.125 6710 22400 1530
BT4B 328977 BG/HA1VA901 660.4 812.8 365.125 365.125 7210 20400 1430
BT4B 331190 BG/HA1 660.4 812.8 365.125 365.125 7210 22400 1530
BT4B 334015 G/HA1VA901 679.45 901.7 552.45 552.45 12100 36000 2400
BT4B 334016 G/HA1VA901 679.45 901.7 635 552.45 12100 36000 2400
BT4B 334060 G/HA1VA901 682.625 965.2 701.675 701.675 17200 49000 3100
BT4B 331503 G/HA4 682.625 965.2 701.675 701.675 17600 50000 3200
BT4B 328955 BG/HA1VA901 685.8 876.3 352.425 355.6 7650 20000 1400
BT4B 328704 G/HA1 685.8 876.3 434.975 355.6 7210 22000 1500
BT4-8109 E1/C800 708.025 930.275 565.15 565.15
331351 710 900 410 410 8800 26500 1760
BT4B 331351 BG/HA1 710 900 410 410 9680 27000 1800
BT4B 331351 E/C775 710 900 410 410
BT4B 329010 G/HA1VA901 711.2 914.4 317.5 317.5 6600 17300 1200
332244 717.55 946.15 565.15 565.15 13400 40500 2650
332244 B 717.55 946.15 565.15 565.15 14500 40500 2600
BT4B 334082 G/HA1VA901 749.3 990.6 605 605 13200 40500 2600
BT4B 334075 G/HA1VA901 762 1079.5 787.4 787.4 21200 61000 3750
BT4-8114 E/C700 785 1040 560 560 16000 41500 2600
BT4B 334135 G/HA4VA901 825.5 1168.4 844.55 844.55 24600 73500 4300
BT4B 334040/HA4 825.5 1168.4 844.6 844.6 23600 76500 4400
BT4B 331123 DG/HA1 863.6 1130.3 669.925 669.925 19800 62000 3750
BT4B 334150 G/HA4VA901 863.6 1169.987 844.55 844.55 23300 71000 4050
BT4B 332967/HA4 863.6 1169.987 844.55 844.55 23800 76500 4400
BT4B 331649/HA4 863.6 1181.1 666.75 666.75 20900 57000 3550
BT4B 332981/HA4 877.888 1220 844.55 844.55 28100 76500 4550
BT4B 330944 AG/HA4 939.8 1333.5 952.5 952.5 31900 95000 5300
BT4B 334031 AG/HA4 1001 1360 800 800 29700 85000 4800
BT4B 328100/HA4 1070.001 1399.997 889.762 889.762 30300 100000 5500
BT4B 328819 G/HA1 1250 1550 890 890 30300 114000 6000
BT4-8150 G/HA4 1300 1720 840 840 36900 104000 5700

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