NTN - Large Bearings

Four Row Tapered Roller Bearings
Sa
Da
ra
r1a
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.
Bearing numbers Abutment and fillet dimensions Constant Axial load factors Mass
mm
kg
d a D a S a r as r las
min max max e Y 1 Y 2 Y o (approx.)
CRO-2008 120 152.5 3.7 2 0.6 0.32 2.12 3.15 2.07 14.5
CRO-2151 135 168.5 2.5 2 1 0.42 1.60 2.38 1.56 26
CRO-2252 119 140.5 1.2 1.5 1.5 0.18 3.66 5.46 3.58 7.7
625924 135 155.5 5 2 2 0.33 2.03 3.02 1.98 8.97
623024 135 166.5 3.8 2 2 0.37 1.80 2.69 1.76 8.87
623124 143 182 4.1 2 2 0.37 1.80 2.69 1.76 16.7
CRO-2418 140 190 4.5 2 2 0.40 1.67 2.50 1.64 22.2
M224749D/M224710/M224710D 129 163 3 1.5 0.8 0.33 2.03 3.02 1.98 11.5
T-48290D/48220/48220D 137 168 4.5 3.3 1.5 0.31 2.21 3.29 2.16 14.3
625926 144.5 169 5 2 2 0.33 2.03 3.02 1.98 11.3
CRO-2701 143 165 2 2 1 0.33 2.03 3.02 1.98 13.5
T-48393D/48320/48320D 144 177 4 3.3 1.5 0.32 2.10 3.13 2.05 14.8
T-48680D/48620/48620D 150 185 3 3.3 0.8 0.34 2.01 2.99 1.96 17.3
625928 156 183 5 2 2 0.33 2.03 3.02 1.98 14
623028 159 193 3.5 2 2 0.37 1.84 2.74 1.80 13.8
CRO-2817 159 193 3.4 2 2 0.37 1.84 2.74 1.80 13.9
81576D/81962/81963D 163 225 6.5 3.3 1.5 0.35 1.92 2.86 1.88 36.8
CRO-3052 162 192.5 2.5 2 1.5 0.40 1.68 2.50 1.64 20.3
625930 167.5 195 5.5 2 2.5 0.33 2.03 3.02 1.98 16.9
T-M231649D/M231610/M231610D 165 207 4 1.5 1.5 0.36 1.87 2.79 1.83 24.7
625932 177.5 208.5 5.5 2 2.5 0.33 2.03 3.02 1.98 20.2
CRO-3209 (CRO-3210) 184 247 4.5 2 2 0.33 2.03 3.02 1.98 37.0
T-46791D/46720/46721D 175 209 3 0.8 2.5 0.38 1.76 2.62 1.72 20.7
Remarks: 1. Bearing numbers marked "" designate inch system bearings.
2.
B-181