Needle Roller Bearings - Ntn-snr.com

Inner rings
NTN
Type IR
d
6075mm
Boundary dimensions Bearing numbers Abutment Mass
dimensions
mm mm kg
d F 1) B rs min 2) t min max (approx.)
da
ras
60
65
70
75
68 25 1 2.2 IR606825 65 1 0.152
68 34 1 2.2 IR606834 65 1 0.206
68 35 0.6 2.2 IR606835 64 0.6 0.213
68 0 45 1 2.2 IR606845 65 1 0.270
0.013
70 25 1 2.2 IR607025 65 1 0.195
70 28 1.1 2.2 IR607028 66.5 1 0.216
70 30 1 2.2 IR607030 65 1 0.232
70 60 1 2.2 IR607060 65 1 0.463
72 25 1 2.2 IR657225 70 1 0.142
72 34 1 2.2 IR657234 70 1 0.193
72 45 1 2.2 IR657245 70 1 0.259
73 0 25 0.6 2.2 IR657325 69 0.6 0.164
73
0.013
35 0.6 2.2 IR657335 69 0.6 0.232
75 28 1.1 2.2 IR657528 71.5 1 0.240
75 30 1 2.2 IR657530 70 1 0.256
75 60 1 2.2 IR657560 70 1 0.513
80 25 1 2.2 IR708025 75 1 0.224
80 28 1.1 2.2 IR708028 76.5 1 0.250
80 30 1 2.2 IR708030 75 1 0.267
80 0 35 1 2.2 IR708035 75 1 0.313
80
0.013
40 1 2.2 IR708040 75 1 0.358
80 54 1 2.2 IR708054 75 1 0.483
80 56 1 2.2 IR708056 75 1 0.502
80 60 1 2.2 IR708060 75 1 0.540
85 25 1 2.2 IR758525 80 1 0.238
85 30 1 2.2 IR758530 80 1 0.287
85 0 35 1 2.2 IR758535 80 1 0.336
85
0.015
40 1 2.2 IR758540 80 1 0.385
85 54 1 2.2 IR758554 80 1 0.515
90 32 1.1 2.2 IR759032 81.5 1 0.480
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-124