Page 193 - needle bearings

Inner rings
NTN

d 101.600ʙ203.200mm

Boundary dimensions Bearing numbers Abutment Mass
dimensions
mm (!/25 . 4mm) mm kg
da ras
d F 1) B rs min 2) t min max (approx.)
127.000(5) 51.05 2.5 2.5 MI-648032 110.5 2.5 1.82
0
101.600(4) 127.000(5) ʵ0.018 57.40 2.5 2.5 MI-648036 110.5 2.5 2.05
127.000(5) 63.88 2.5 2.5 MI-648040 110.5 2.5 2.28
139.700(5 !/2) 0 63.88 2.5 2.5 MI-728840 123.5 2.5 2.58
114.300(4 !/2) ʵ0.018
139.700(5 !/2) 76.58 2.5 2.5 MI-728848 123.5 2.5 3.10
0
120.650(4 #/4) 146.050(5 #/4) ʵ0.018 76.58 3 3 MI-769248 132 3 3.18
152.400(6) 0 63.88 3 3 MI-809640 140 3 2.80
127.000(5) ʵ0.018
152.400(6) 76.58 3 3 MI-809648 140 3 3.35
165.100(6 !/2) ʵ0.010 63.88 3 3 MI-8810440 152.5 3 2.84
139.700(5 !/2) ʵ0.028
165.100(6 !/2) 76.58 3 3 MI-8810448 152.5 3 3.40
ʵ0.013
152.400(6) 184.150(7 !/4) ʵ0.033 76.58 3 3 MI-9611648 165.5 3 4.80
ʵ0.013
165.100(6 !/2) 196.850(7 #/4) ʵ0.043 76.58 3 3 MI-10412448 178 3 5.30
ʵ0.013
177.800(7) 209.550(8 !/4) ʵ0.043 76.58 3 3 MI-11213248 191 3 5.60
ʵ0.020
190.500(7 !/2) 222.250(8 #/4) ʵ0.050 76.58 4 3 MI-12014048 206.5 4 6.10
ʵ0.033
203.200(8) 234.950(9 !/4) ʵ0.063 76.58 4 3.5 MI-12814848 219 4 6.50

Note 1) Dimensional tolerance to secure ordinary clearance when any of these inner rings is combined with needle roller bearing with no inner ring.
2) Allowable minimum chamfer dimension r .
B-131