Page 180 - needle bearings

Inner rings
NTN

Type IR

d 10ʙ15mm

Boundary dimensions Bearing numbers Abutment Mass
dimensions
mm mm kg
da ras
d F 1) B rs min 2) t min max (approx.)
15 15.5 0.3 1 IR10ʷʷ15ʷʷ15.5 12 0.3 0.012
10 15 0 20.5 0.3 1 IR10ʷʷ15ʷʷ20.5 12 0.3 0.015
ʵ0.008
16 16 0.3 1 IR10ʷʷ16ʷʷ16 12 0.3 0.015
15 12 0.3 1 IR12ʷʷ15ʷʷ12 14 0.3 0.0058
15 12.5 0.3 1 IR12ʷʷ15ʷʷ12.5 14 0.3 0.0061
15 16 0.3 1 IR12ʷʷ15ʷʷ16 14 0.3 0.0078
15 16.5 0.3 ʵ ˞ IR12ʷʷ15ʷʷ16.5 14 0.3 0.0080
15 22.5 0.3 ʵ ˞ IR12ʷʷ15ʷʷ22.5 14 0.3 0.011
16 12 0.3 1.5 IR12ʷʷ16ʷʷ12 14 0.3 0.0079
16 0 13 0.3 1.5 IR12ʷʷ16ʷʷ13 14 0.3 0.0087
12 ʵ0.008
16 14 0.3 ʵ ˞ IR12ʷʷ16ʷʷ14D 14 0.3 0.0095
16 16 0.3 1.5 IR12ʷʷ16ʷʷ16 14 0.3 0.011
16 20 0.3 1.5 IR12ʷʷ16ʷʷ20 14 0.3 0.014
16 22 0.3 1.5 IR12ʷʷ16ʷʷ22 14 0.3 0.015
17 20.5 0.3 1.5 IR12ʷʷ17ʷʷ20.5 14 0.3 0.019
17 25.5 0.3 1.5 IR12ʷʷ17ʷʷ25.5 14 0.3 0.024
18 16 0.3 1.5 IR12ʷʷ18ʷʷ16 14 0.3 0.018
0
14 17 17 0.3 1.5 IR14ʷʷ17ʷʷ17 16 0.3 0.0095
ʵ0.008
18 12.5 0.3 1.5 IR15ʷʷ18ʷʷ12.5 17 0.3 0.0072
18 16 0.3 1.5 IR15ʷʷ18ʷʷ16 17 0.3 0.0093
18 16.5 0.3 1.5 IR15ʷʷ18ʷʷ16.5 17 0.3 0.0096
0
18 ʵ0.008 17.5 0.3 1.5 IR15ʷʷ18ʷʷ17.5 17 0.3 0.010
18 20.5 0.3 1.5 IR15ʷʷ18ʷʷ20.5 17 0.3 0.012
18 25.5 0.3 1.5 IR15ʷʷ18ʷʷ25.5 17 0.3 0.015
15 19 16 0.3 1.5 IR15ʷʷ19ʷʷ16 17 0.3 0.013
19 20 0.3 1.5 IR15ʷʷ19ʷʷ20 17 0.3 0.016
20 12 0.3 1.5 IR15ʷʷ20ʷʷ12 17 0.3 0.012
0
20 ʵ0.009 13 0.3 1.5 IR15ʷʷ20ʷʷ13 17 0.3 0.014
20 14 0.3 ʵ ˞ IR15ʷʷ20ʷʷ14D 17 0.3 0.015
20 18 0.3 1.5 IR15ʷʷ20ʷʷ18 17 0.3 0.019
20 20.5 0.3 1.5 IR15ʷʷ20ʷʷ20.5 17 0.3 0.021
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 code "D" represents inner ring with oil hole.
2. Nominal number plus ˞-mark represents inner ring with fine-chamfered outer surface.
B-118