NTN - Large Bearings

Double Row Steep Slope Tapered Roller Bearings (Inside Direction)
Sa
Kr
Da
ras
rlas
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.
Drawing D
Groove dimensions Abutment and fillet dimensions Constant Axial load factors Mass
mm numbers mm mm kg
width depth angle key groove d a D a S a r as r las
K w K d ˚ side face K r max min min max max e Y 1 Y 2 Y o (approx.)
63.6 30 90 1-2 503 692 3 5 5 1.09 0.62 0.92 0.61 315
50 15 90 2-2 525 661.5 8 5 5 0.87 0.78 1.16 0.76 223
50 15 90 2-1 525 662 8 5 5 0.87 0.78 1.16 0.76 224
500.5 588 6.5 2.5 5 0.61 1.11 1.66 1.09 115
50.8 38 45 2-2 546.5 669.5 8 4 12 1.09 0.62 0.92 0.61 301
50.8 38.1 45 2-2 560 711.5 8 4 4 0.87 0.78 1.16 0.76 256
70.358 44.45 45 1-2 12.865 560 772 8 5 5 0.81 0.83 1.23 0.81 511
56 22 90 1-2 629.5 884 4.5 6 6 0.87 0.78 1.16 0.76 914
687 964 8 6 6 0.87 0.78 1.16 0.76 1,130
50 20 45 2-2 684.5 886 8 2.5 5 0.70 0.97 1.44 0.94 202
63.5 19.05 90 2-2 738 926 1.5 5 2.5 0.70 0.97 1.44 0.94 478
63.5 38.1 45 2-2 738.5 926 8 5 2.5 0.70 0.97 1.44 0.94 435
760.5 898 5.8 3 4 0.81 0.83 1.23 0.81 240
90 35 45 1-2 824.5 978 3.6 2 4 0.80 0.85 1.26 0.83 384
1,437.5 1,578 12.5 2 4 0.55 1.24 1.84 1.21 532
B-179