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 2.13 3.17 2.08 270 265
0.17 3.90 5.81 3.82 22.8 22.4
0.19 3.50 5.21 3.42 43 41.7
0.25 2.73 4.06 2.67 78.2 75.5
0.33 2.06 3.07 2.02 103 101
0.33 2.06 3.07 2.02 167 162
0.40 1.67 2.48 1.63 207 204
0.26 2.57 3.83 2.51 172 168
0.36 1.86 2.77 1.82 243 236
0.36 1.86 2.77 1.82 241 233
0.34 1.99 2.96 1.94 166 160
0.17 3.91 5.83 3.83 44.7 43.3
0.25 2.68 3.99 2.62 104 100
0.34 1.98 2.95 1.94 140 138
0.33 2.05 3.06 2.01 210 204
0.42 1.61 2.39 1.57 269 265
0.37 1.84 2.75 1.80 300 291
0.37 1.84 2.75 1.80 298 288
0.12 5.78 8.61 5.66 19.2 18.6
0.14 4.94 7.36 4.83 37.1 36.1
0.17 3.99 5.93 3.90 47.2 45.7
0.25 2.69 4.01 2.63 92.8 89.5
0.23 2.92 4.35 2.86 95.3 92.3
0.24 2.78 4.14 2.72 110 106
0.33 2.06 3.07 2.02 147 145
0.32 2.11 3.15 2.07 222 215
0.40 1.67 2.48 1.63 281 277
0.41 1.64 2.44 1.60 290 277
0.36 1.87 2.78 1.83 339 329
0.19 3.54 5.27 3.46 69.9 67.7
0.24 2.87 4.27 2.80 115 111
0.30 2.23 3.32 2.18 153 150
0.31 2.16 3.22 2.12 235 228
0.39 1.73 2.58 1.69 292 287
B-215