Page 191 - needle bearings

Inner rings
NTN

Inch series

Type MI

d z9.525ʙ34.925mm

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.)
14.288((/16) 12.95 0.6 ʵ ˞ MI-060908 13.5 0.6 0.013
0
9.525(#/8) 15.875(%/8) 19.30 0.6 1 MI-061012 13.5 0.6 0.019
ʵ0.008
15.875(%/8) 25.65 0.6 1 MI-061016 13.5 0.6 0.025
19.050(#/4) 16.13 1 ʵ ˞ MI-081210 17.5 1 0.020
0
12.700(!/2) 19.050(#/4) 19.30 1 ʵ ˞ MI-081212 17.5 1 0.024
ʵ0.009
19.050(#/4) 25.65 1 ʵ ˞ MI-081216 17.5 1 0.032
22.225(&/8) 9.78 1 ʵ ˞ MI-101406 21 1 0.014
22.225(&/8) 12.95 1 ʵ ˞ MI-101408 21 1 0.018
15.875(%/8) 0
22.225(&/8) ʵ0.009 19.30 1 ʵ ˞ MI-101412 21 1 0.027
22.225(&/8) 25.65 1 ʵ ˞ MI-101416 21 1 0.036
25.400(1) 0 19.30 1 ʵ ˞ MI-121612 24 1 0.034
19.050(#/4)
25.400(1) ʵ0.009 25.65 1 ʵ ˞ MI-121616 24 1 0.045
28.575(1 !/8) 12.95 1 ʵ ˞ MI-141808 27 1 0.027
28.575(1 !/8) 19.30 1 ʵ ˞ MI-141812 27 1 0.040
22.225(&/8) 0
28.575(1 !/8) ʵ0.009 25.65 1 ʵ ˞ MI-141816 27 1 0.052
28.575(1 !/8) 32.00 1 ʵ ˞ MI-141820 27 1 0.066
31.750(1 !/4) 19.30 1 ʵ ˞ MI-162012 30.5 1 0.039
ʴ0.008
25.400(1) 31.750(1 !/4) ʵ0.002 25.65 1 ʵ ˞ MI-162016 30.5 1 0.052
31.750(1 !/4) 32.00 1 ʵ ˞ MI-162020 30.5 1 0.065

34.925(1 #/8) 12.95 1 ʵ ˞ MI-182208 33.5 1 0.032
ʴ0.008
28.575(1 !/8) 34.925(1 #/8) 25.65 1 ʵ ˞ MI-182216 33.5 1 0.063
ʵ0.002
34.925(1 #/8) 32.00 1 ʵ ˞ MI-182220 33.5 1 0.079
38.100(1 !/2) 0 25.65 1.5 ʵ ˞ MI-202416 37 1.5 0.075
31.750(1 !/4)
38.100(1 !/2) ʵ0.011 32.00 1.5 ʵ ˞ MI-202420 37 1.5 0.094
41.275(1 %/8) 0 25.65 1.5 2 MI-212616 40 1.5 0.093
33.338(1 %/16)
41.275(1 %/8) ʵ0.011 32.00 1.5 2 MI-212620 40 1.5 0.116
41.275(1 %/8) 0 16.13 1.5 2 MI-222610 40 1.5 0.073
34.925(1 #/8)
44.450(1 #/4) ʵ0.011 25.65 1.5 2 MI-222816 41.5 1.5 0.117

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 .
Remarks: 1. Nominal number plus ˞-mark represents inner ring with fine-chamfered outer surface. r
B-129