NTN - Large Bearings

Double Row Angular Contact Ball Bearings
Da
ra
ra
da
Da
r1a
ra
da
Equivalent bearing load
dynamic
PrXFrYFa
Contact
angle
30˚
40˚
e
0.80
1.14
Single
DB, DF
Fa Fre Fa Fre Fa Fre Fa Fre
X Y X Y X Y X Y
1
1
0
0
0.39 0.76
0.35 0.57
1
1
0.78
0.55
0.63
0.57
1.24
0.93
static
PorXo FrYo Fa
Contact
angle
30˚
40˚
Single
Xo
0.5
0.5
DB, DF
Yo Xo Yo
0.33 1 0.66
0.26 1 0.52
For single, When PorFr use PorFr
Abutment and Load Mass
fillet dimensions center
mm
mm
d a D a r as r las kg
min max max max a (approx.)
158 112 2 2 143 5.64
157.5 112 2 54.5 4.61
184.5 132 2 1 122 7.09
184.5 132 2 1 122 7.09
188 142 2 64 7.54
198 150 2 90 8
204.5 152 2 90 7.76
198 152 2 67 7.72
213 162 2 71.5 9.74
213 162 2 71.5 9.74
213 162 2 72.5 9.69
221.5 162 2 1.5 143 9.74
221.5 158.5 2 2 194 9.74
208 170 2 1 182 5.71
228 172 2 76.5 12
248 182 2 111 16.1
268 187 2 119 21.7
268 187 2 88.5 21.7
238 192 2 106 9.83
244.5 192 2 1 215 10.4
254 192 2 1 160 10.4
254 192 2 1 160 10.4
247.5 192 2 109 10.7
249.5 190 2 109 10.7
247.5 192 2 80 10.7
247.5 192 2 2 160 10.4
268 192 2 89.5 20.9
264 202 2 1 166 11.9
264 202 2 1 166 11.9
B-33