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Four Row Tapered Roller Bearing

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The 31300 series four row tapered roller bearings have a diameter of 139.7mm-780mm, outside diameter of 200.025mm-1220mm, and width of 157.162mm-840mm. They are made using a high carbon chromium steel GCr15, thus giving them a high hardness and outstanding erosion resistance, which makes them suitable for harsh working conditions.

Four Row Tapered Roller Bearing
Bearing No. Boundary dimensions(mm) Basic load ratings(kN) Mass(kg)
d D B T r min r1 min dyc(Cr) stc(Cor)
77928 139.7 200.025 157.162 160.338 1.1 1.8 535 1870 16.2
2077930 150 210 165 165 0.7 2.3 600 1590 21.2
77730 150 225 136 136 3 2.5 540 1460 17.7
2077134 170 260 230 230 3 2.5 940 3100 43
77736 180 280 180 180 3 2.5 835 2540 39.6
77740 200 310 200 200 3 2.5 1970 1520 55.6
20777140 200 310 275 275 3 2.5 1230 4200 75.1
77741 205 320 205 205 4 3 1060 2850 55.4
20777144 220 340 305 305 4 3 2290 5950 99.5
20777148 240 360 310 310 4 3 3300 210 90.5
77750K 250 460 270 270 5 4 2250 6400 192
382952/HC 260 360 265 265 3 2.5 1730 5050 77.8
77752 260 400 255 255 3.7 7.5 1480 4950 117
7752G 260 400 255 255 5 4 1910 490 117
382052 260 400 345 345 5 4 2850 7700 161
777752 260 440 300 300 2 5 2670 5850 182
77756 280 420 250 250 5 5 1540 5300 119
77860U 300 420 310 310 4 3 2020 8100 134
2077160 300 460 390 390 5 4 3850 10200 222
77760U 300 500 350 350 5 4 2730 8900 280
2077164 320 480 380 380 5 4 3000 11500 252
2077968 340 460 310 310 4 4 2200 9300 147
371068 340 520 325 325 5 4 3200 8200 247
77872 360 480 375 375 4 4 2550 11800 197
1077772 360 600 420 420 4.7 4.7 3950 13500 388
77776 380 550 330 350 5 5 2490 9450 273
3077776 380 620 388 388 6 6 3450 11600 443
381176/HC 380 620 420 420 5 4 5050 12600 485
381176/HCC9 380 620 420 420 5 4 5050 12600 485
77779 395 545 268.7 288.7 4 7.5 2130 6500 194
77779K 395 545 268.7 288.7 4 7.5 2130 6500 194
77779U 395 545 268.7 288.7 4 7.5 2130 6500 194
77880 400 540 280 280 3.7 7.5 2450 6500 187
380680/HC 400 540 400 400 5 5 6350 13300 262
381080/HC 400 600 356 356 5 4 3400 12400 345
380684/HC 420 560 437 437 5 5 7180 16300 298
1077784 420 700 480 480 6 5 5100 18200 749
381184 420 700 480 480 6 5 9550 11900 755
77888U 440 620 454 454 6 6 6050 1880 432
77888 440 620 454 454 6 6 6050 18800 432
77888 440 650 355 355 6 5 3350 12100 385
77888K 440 650 355 355 6 6 3350 12100 385
381088X2/HG 440 650 355 355 6 5 4550 12300 402
381992/HC 460 620 310 310 5 4 5600 3450 260
381992/HCC9 460 620 310 310 5 4 5600 3450 260
77982U 460 650 474 4746 6 6 4500 20000 506
381192X3/HC 460 730 440 440 4 7.5 5600 14800 663
381192X3/HCC9 460 30 440 440 4 7.5 5600 14800 663
381096 480 700 420 420 5 5 4300 16900 582
77196 480 700 420 420 6 5 5350 15500 535
380698/HC 490 625 385 385 7 4 4900 16500 278
3810/530 530 780 450 450 6 5 6550 18200 745
779/540 540 690 400 400 2 5 5700 11400 375
3819/560/HC 560 750 368 368 5 4 7850 15800 447
3811/560 560 920 620 620 7.5 6 18200 32000 1690
779/600 600 800 365 365 5 5 4000 18100 489
10779/600 600 800 380 380 5 4 4000 18100 497
3810/600/HC 600 870 480 480 6 6 6150 25500 992
10777/600 600 980 650 650 7.5 7.5 9650 37500 1970
3819/630/HC 630 850 418 418 6 6 5000 22100 682
771/630 630 920 515 515 7.5 7.5 6550 27500 1190
3811/630/HC 630 1030 670 670 7.5 6 15000 42000 2200
777/650C 640 1030 560 560 7.5 12 16000 39300 1770
777/650K 650 1030 560 560 7.5 12 16000 39300 1735
777/650 650 1030 560 560 7.5 12 16000 39300 1720
777/650U 650 1030 560 560 7.5 12 16000 39300 1723
777/650UY 650 1030 560 560 7.5 12 16000 39300 1712
3806/660X4/HC 660.01 855.015 319.99 319.99 12 5.2 4750 17000 495
10779/670 670 900 412 412 6 6 5250 2460 773
779/710 710 900 410 410 3 6 5350 27500 650
10777/750 750 1220 840 840 9.5 9.5 16100 68500 3985
3806/780/HCC9 780 1220 840 840 6 6 21100 70500 3810
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