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
0.32 2.09 3.12 2.05 43 42.3
0.32 2.11 3.15 2.07 65.8 63.8
0.40 1.69 2.51 1.65 82.2 80.9
0.28 2.43 3.62 2.38 81.7 80
0.37 1.83 2.72 1.79 108 105
0.32 2.10 3.13 2.06 148 145
0.31 2.18 3.24 2.13 58.2 56.3
0.18 3.76 5.60 3.67 21.6 21
0.19 3.53 5.26 3.45 24 23.3
0.26 2.63 3.92 2.57 48.5 46.8
0.34 1.96 2.91 1.91 65.2 64.1
0.33 2.05 3.06 2.01 91.4 88.6
0.41 1.63 2.43 1.60 114 112
0.28 2.45 3.64 2.39 106 104
0.37 1.83 2.72 1.79 141 137
0.32 2.13 3.18 2.09 183 179
0.12 5.42 8.07 5.30 11 10.6
0.17 3.88 5.78 3.79 26.4 25.6
0.25 2.73 4.06 2.67 52.4 50.6
0.33 2.06 3.07 2.02 69 67.9
0.35 1.92 2.86 1.88 88.6 84.9
0.32 2.13 3.18 2.09 97.7 94.6
0.39 1.73 2.58 1.69 120 118
0.26 2.57 3.83 2.51 112 110
0.36 1.90 2.83 1.86 150 145
0.31 2.16 3.22 2.12 224 220
0.25 2.69 4.00 2.63 56 54.1
0.20 3.34 4.98 3.27 40 38.7
0.25 2.66 3.96 2.60 72.4 70.2
0.34 1.97 2.93 1.92 98 96.4
0.32 2.11 3.15 2.07 131 127
0.40 1.69 2.51 1.65 161 159
0.26 2.57 3.83 2.51 141 138
0.36 1.88 2.79 1.83 193 187
B-213