NTN - Large Bearings

Double Row Tapered Roller Bearings (Inside Direction)
Sa
Da
r1a
ra
da
Equivalent bearing load
dynamic
PrXFrYFa
Fa
Fr
e
Fa
e Fr
X Y X Y
1 Y1 0.67 Y2
static
PorFrYoFa
For values of e, Y2 and Yo
see the table below.
Abutment and fillet dimensions Load 2 Constant Axial load factors Mass
center
mm mm kg
d a D a S a r as r las
max max min min max max a e Y 1 Y 2 Y o (approx.)
460 598 570 20 4 5 48.5 0.37 1.80 2.69 1.76 154
465 672 625 25 5 5 60 0.40 1.68 2.50 1.64 346
489.5 699 609 6.2 6 6 – 67 0.37 1.80 2.69 1.76 780
480 622 600 20 5 5 53.5 0.37 1.80 2.69 1.76 177
485 692 645 25 5 5 44 0.40 1.68 2.50 1.64 361
503.5 702 632 10 5 5 – 24.5 0.33 2.03 3.02 1.98 513
500.5 684 619.5 15.5 3 6 – 8 0.43 1.57 2.34 1.53 483
537 794.5 690.5 19.5 6 6 – 29 0.40 1.68 2.50 1.64 890
500 652 620 25 5 5 56.5 0.37 1.80 2.69 1.76 201
525 724 660 25 6 6 34.5 0.40 1.68 2.50 1.64 431
547 832 709.5 19.5 5 5 – 43 0.40 1.68 2.50 1.64 1,120
520 672 640 25 5 5 63 0.37 1.80 2.69 1.76 211
547.5 754 688.5 30 6 6 36 0.40 1.68 2.50 1.64 478
500 577 557 6.5 3.3 6.4 133.5 0.61 1.11 1.66 1.09 108
500 577 557 6.5 3.3 6.4 133.5 0.61 1.11 1.66 1.09 108
504 585 567.5 6.5 3.3 6.4 35.5 0.33 2.03 3.02 1.98 121
536 648 609 7.5 2 4 75.5 0.40 1.68 2.50 1.64 148
540 692 655 25 5 5 61.5 0.37 1.80 2.69 1.76 221
583.5 776 709 7.5 8 8 44 0.40 1.68 2.50 1.64 535
550 794 740 30 6 6 37.5 0.40 1.68 2.50 1.64 570
620 792 738 11 5 5 54.5 0.35 1.92 2.86 1.88 347
622.5 743.5 698 10.5 3.3 6.4 31.5 0.35 1.95 2.90 1.91 285
639 742 708 5 3 3 110.5 0.37 1.80 2.69 1.76 120
641 834 747 7.5 3 6 5.5 0.47 1.43 2.12 1.40 758
399 884 825.5 8.5 6 6 93.5 0.40 1.68 2.50 1.64 479
B-159