NTN - Large Bearings

Double Row Tapered Roller Bearings (Outside Direction)
Sb
Db
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 Constant Axial load factors Mass
center
mm mm kg
d a D b S b r as r las
min min min max max a e Y 1 Y 2 Y o (approx.)
162 234 10 2 1 107.5 0.37 1.80 2.69 1.76 21.2
162 238 12.5 2 1 119 0.41 1.66 2.47 1.62 27.7
168 239.5 17.5 3 1 125 0.41 1.66 2.47 1.62 31.4
168 255 11 3 1 114 0.44 1.55 2.31 1.52 24.4
168 254 17 3 1 139 0.44 1.55 2.31 1.52 37.3
172 292 17 4 1.5 132 0.35 1.96 2.91 1.91 55.4
172 292 17 4 1.5 135 0.37 1.80 2.69 1.76 52.8
174 227 3.5 2.5 1 79 0.37 1.80 2.69 1.76 8.29
174 227 7.5 2.5 1 85.5 0.37 1.80 2.69 1.76 10.7
172 231.5 10 2 0.6 107 0.37 1.80 2.69 1.76 15.6
174 254 5 2.5 1 98.5 0.40 1.68 2.50 1.64 18.2
174 250 11 2.5 1 106 0.37 1.80 2.69 1.76 22.8
172 250.5 12 2 1 95 0.31 2.21 3.29 2.16 22.9
172 251.5 10 2 1 113.5 0.32 2.12 3.15 2.07 31.8
172 252 15 2 1 119.5 0.32 2.12 3.15 2.07 32.8
178 264.5 12.5 3 1 119.5 0.32 2.12 3.15 2.07 34.8
178 272 12 3 1 122 0.44 1.55 2.31 1.52 31.9
178 275 17 3 1 150 0.44 1.55 2.31 1.52 46.9
182 310 17 4 1.5 138 0.35 1.96 2.91 1.91 65.5
182 311 17 4 1.5 141 0.37 1.80 2.69 1.76 62.4
187 274 12.5 4 1 127.5 0.32 2.12 3.15 2.07 37.5
201 308.5 19 6 1.5 124.5 0.34 2.00 2.98 1.96 61.2
182 237.5 10 2 1 103 0.44 1.54 2.29 1.50 12.6
184 242 3.5 2.5 1 86.5 0.37 1.80 2.69 1.76 11.6
184 244 8.5 2.5 1 93.5 0.37 1.80 2.69 1.76 14.3
184 260 5 2.5 1 104 0.40 1.68 2.50 1.64 19.5
184 260 11 2.5 1 109 0.37 1.80 2.69 1.76 24.7
184 250.5 14 2.5 1 132.5 0.44 1.52 2.26 1.49 32.8
182 265 10 2 1 125.5 0.33 2.03 3.02 1.98 34.3
192 290.5 14 4 1.5 132 0.44 1.55 2.31 1.52 38
192 293 20 4 1.5 160 0.44 1.55 2.31 1.52 58.2
194 260 4 2.5 1 94 0.37 1.80 2.69 1.76 15.9
194 262 9.5 2.5 1 102 0.37 1.80 2.69 1.76 19
192 266 13.5 2 1 122 0.37 1.80 2.69 1.76 27
198 280 5.5 3 1.5 111 0.40 1.68 2.50 1.64 24.6
B-129