NTN - Large Bearings

Double Row Tapered Roller Bearings (Inside Direction)
Sa
Da
r1a
ra
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.
Abutment and fillet dimensions Load 2 Constant Axial load factors Mass
center
mm mm kg
d a D a S a r as r las
max max min min max max a e Y 1 Y 2 Y o (approx.)
135 232 200 4.5 3 3 – 14.5 0.40 1.68 2.50 1.64 30
124.5 158 148.5 2.5 2 2 – 22.5 0.29 2.35 3.50 2.30 7.92
124 170 160 8 2 2 1 0.33 2.03 3.02 1.98 5.6
128.5 176 160 5 2.5 1.5 – 16 0.42 1.62 2.42 1.59 12.1
128.5 188 170.5 4 2 1 – 2 0.42 1.61 2.39 1.57 11.3
130.5 160 149 0.4 2 2 – 49 0.25 2.69 4.00 2.63 8.57
134 170 164 8 2 2 12 0.37 1.80 2.69 1.76 4.08
134 190 175 8 2 2 6.5 0.37 1.80 2.69 1.76 7.82
141 203 180.5 4.3 2 2 – 22 0.35 1.95 2.90 1.91 17.7
172 266 237 7.3 2.5 2.5 – 28.5 0.33 2.03 3.02 1.98 47.3
144 181.5 171 2 1.5 1.5 – 43.5 0.33 2.03 3.02 1.98 11.4
142.5 183 166 2.7 2 1.5 – 26.5 0.47 1.43 2.12 1.40 12.5
144 190 184 8 2 2 13.5 0.37 1.80 2.69 1.76 5.92
144 200 185 8 2 2 7.5 0.37 1.80 2.69 1.76 8.58
155 200 190 8 2 2 10 0.37 1.84 2.74 1.80 6.4
156 213 200 10 2 2.5 8 0.37 1.80 2.69 1.76 10.7
165 213 205 10 2 2.5 15.5 0.37 1.80 2.69 1.76 7.76
168 238 220 10 2 2.5 6.5 0.37 1.80 2.69 1.76 15.7
169 238 213 4.4 2 2 1 0.46 1.47 2.19 1.44 21.7
175 228 215 10 2 2.5 17.5 0.37 1.80 2.69 1.76 9.46
175.5 228 211 2.1 2 2 – 14.5 0.33 2.03 3.02 1.98 17.3
175 246 213 3.5 2.5 1.5 15 0.62 1.09 1.62 1.06 26.9
178 258 240 10 2 2.5 8 0.37 1.80 2.69 1.76 20
184.5 258 227 4.2 2 2 – 4.5 0.40 1.68 2.50 1.64 27.1
185 248 235 10 2 2.5 18 0.37 1.80 2.69 1.76 12.8
195 264 245 4.5 2 2 18 0.40 1.68 2.50 1.64 18.5
188 268 250 10 2 2.5 8.5 0.37 1.80 2.69 1.76 21.5
189 234 218 3.4 3.3 1.5 15.5 0.44 1.52 2.26 1.49 13.45
198 268 250 10 2 2.5 17 0.37 1.80 2.69 1.76 16.5
B-153