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
0.36 1.87 2.78 1.83 704 683
0.18 3.85 5.73 3.76 123 119
0.27 2.52 3.75 2.46 195 185
0.23 2.94 4.38 2.88 217 209
0.30 2.22 3.30 2.17 285 280
0.31 2.15 3.21 2.11 492 477
0.39 1.74 2.59 1.70 608 600
0.36 1.87 2.78 1.83 814 790
0.16 4.10 6.10 4.01 114 109
0.13 5.38 8.02 5.26 59.6 57.5
0.17 4.02 5.98 3.93 131 127
0.23 2.98 4.44 2.91 226 218
0.30 2.28 3.40 2.23 295 290
0.32 2.12 3.16 2.08 584 566
0.39 1.72 2.57 1.69 716 705
0.39 1.74 2.59 1.70 1,000 971
0.17 3.94 5.87 3.86 157 152
0.22 3.03 4.52 2.97 306 295
0.30 2.24 3.33 2.19 413 406
0.30 2.22 3.30 2.17 653 633
0.38 1.79 2.67 1.75 800 788
0.39 1.74 2.59 1.70 1,200 1,170
0.28 2.45 3.65 2.40 301 286
0.11 5.97 8.88 5.83 66.1 63.7
0.16 4.09 6.09 4.00 182 176
0.22 3.03 4.51 2.96 353 340
0.30 2.29 3.40 2.24 467 459
0.30 2.27 3.38 2.22 752 729
0.39 1.75 2.61 1.71 948 934
0.36 1.88 2.80 1.84 1,360 1,320
0.18 3.85 5.73 3.76 218 211
0.21 3.17 4.72 3.10 400 386
B-219