NTN - Large Bearings

Spherical Roller Bearings
ra
Da
ra
da
Equivalent bearing load
dynamic
PrXFrYFa
Fa
Fr
e
Fa
e Fr
X Y X Y
1 Y1 0.67 Y2
static
PorFrYo Fa
For values of e, Y1, Y2 and Yo
see the table below.
Constant Axial load factors Mass (approx.)
kg
Cylindrical tapered
e Y 1 Y 2 Y o bore bore
0.24 2.76 4.11 2.70 857 817
0.17 4.05 6.04 3.96 487 471
0.21 3.15 4.69 3.08 890 859
0.28 2.41 3.59 2.36 1,190 1,170
0.29 2.32 3.45 2.27 1,890 1,830
0.11 6.01 8.94 5.87 232 223
0.16 4.25 6.32 4.15 550 532
0.20 3.32 4.95 3.25 1,050 1,010
0.23 2.98 4.44 2.92 1,100 1,070
0.21 3.28 4.88 3.21 1,060 1,020
0.23 2.90 4.31 2.83 1,200 1,160
0.28 2.42 3.61 2.37 1,410 1,390
0.28 2.37 3.54 2.32 2,270 2,200
0.35 1.94 2.89 1.90 3,890 3,780
0.16 4.32 6.44 4.23 623 603
0.20 3.32 4.95 3.25 1,170 1,130
0.27 2.48 3.70 2.43 1,570 1,540
0.28 2.42 3.60 2.36 2,500 2,420
0.16 4.20 6.26 4.11 774 749
0.17 3.98 5.92 3.89 921 888
0.18 3.66 5.46 3.58 1,210 1,170
0.21 3.26 4.85 3.18 1,430 1,380
0.20 3.33 4.96 3.25 1,450 1,400
0.28 2.39 3.56 2.34 1,970 1,940
0.24 2.77 4.13 2.71 1,940 1,870
0.16 4.21 6.26 4.11 916 887
0.16 4.23 6.30 4.14 911 877
0.20 3.37 5.02 3.29 1,580 1,520
0.27 2.51 3.73 2.45 2,110 2,080
0.24 2.85 4.25 2.79 2,290 2,200
0.16 4.28 6.37 4.19 1,090 1,060
0.20 3.36 5.00 3.28 1,850 1,790
B-223