NTN - Needle Roller Bearings
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Bearing Fits<br />
<strong>NTN</strong><br />
Table 6.3 Numerical fit values for radial bearing (JIS Class-0)<br />
Table 6.3(1) Bearing fits on shaft<br />
Nominal bore<br />
diameter<br />
d<br />
mm<br />
Allowable<br />
deviation of<br />
mean bore<br />
diameter <br />
∆dmp<br />
g6 h5 h6 j5<br />
k5 m5<br />
Bearing Shaft Bearing Shaft Bearing Shaft Bearing Shaft Bearing Shaft Bearing Shaft<br />
m6<br />
Bearing Shaft<br />
Bearing<br />
Unit m<br />
n6<br />
Shaft<br />
pver incl. high low<br />
3<br />
6<br />
0<br />
8<br />
4T12L<br />
8T<br />
5L<br />
8T<br />
8L<br />
11T<br />
2L<br />
14T1T<br />
17T<br />
4T<br />
20T<br />
4T<br />
24T<br />
8T<br />
6<br />
10<br />
0<br />
8<br />
3T14L<br />
8T<br />
6L<br />
8T<br />
9L<br />
12T<br />
2L<br />
15T1T<br />
20T<br />
6T<br />
23T<br />
6T<br />
27T10T<br />
10<br />
18<br />
0<br />
8<br />
2T17L<br />
8T<br />
8L<br />
8T11L<br />
13T<br />
3L<br />
17T1T<br />
23T<br />
7T<br />
26T<br />
7T<br />
31T12T<br />
18<br />
30<br />
0 10<br />
3T20L<br />
10T<br />
9L<br />
10T13L<br />
15T<br />
4L<br />
21T2T<br />
27T<br />
8T<br />
31T<br />
8T<br />
38T15T<br />
30<br />
50<br />
0 12<br />
3T25L<br />
12T 11L<br />
12T16L<br />
18T<br />
5L<br />
25T2T<br />
32T<br />
9T<br />
37T<br />
9T<br />
45T17T<br />
50<br />
80<br />
0 15<br />
5T29L<br />
15T 13L<br />
15T19L<br />
21T<br />
7L<br />
30T2T<br />
39T11T<br />
45T11T<br />
54T20T<br />
80<br />
120<br />
0 20<br />
8T34L<br />
20T 15L<br />
20T22L<br />
26T<br />
9L<br />
38T3T<br />
48T13T<br />
55T13T<br />
65T23T<br />
120<br />
140<br />
160<br />
140<br />
160<br />
180<br />
0 25<br />
11T39L<br />
25T 18L<br />
25T25L<br />
32T11L<br />
46T3T<br />
58T15T<br />
65T15T<br />
77T27T<br />
180<br />
200<br />
225<br />
200<br />
225<br />
250<br />
0 30<br />
15T44L<br />
30T 20L<br />
30T29L<br />
37T13L<br />
54T4T<br />
67T17T<br />
76T17T<br />
90T31T<br />
250<br />
280<br />
280<br />
315<br />
0 35<br />
18T49L<br />
35T 23L<br />
35T32L<br />
42T16L<br />
62T4T<br />
78T20T<br />
87T20T<br />
101T34T<br />
315<br />
355<br />
355<br />
400<br />
0 40<br />
22T54L<br />
40T 25L<br />
40T36L<br />
47T18L<br />
69T4T<br />
86T21T<br />
97T21T<br />
113T37T<br />
400<br />
450<br />
450<br />
500<br />
0 45<br />
25T60L<br />
45T 27L<br />
45T40L<br />
52T20L<br />
77T5T<br />
95T23T<br />
108T23T<br />
125T40T<br />
Table 6.3 (2) Bearing fits in housing hole<br />
Unit m<br />
H7 J7 K6<br />
K7 M7 N7 P7<br />
Housing Bearing Housing Bearing Housing Bearing Housing Bearing Housing Bearing Housing Bearing Housing Bearing<br />
Nominal outer<br />
diameter<br />
D<br />
mm<br />
Allowable<br />
deviation of<br />
mean outer<br />
diameter<br />
∆Dmp<br />
over incl. high low<br />
6<br />
10<br />
0<br />
8<br />
0<br />
23L<br />
7T16L<br />
7T10L<br />
10T13L<br />
15T<br />
8L<br />
19T<br />
4L<br />
24T<br />
1L<br />
10<br />
18<br />
0<br />
8<br />
0<br />
26L<br />
8T18L<br />
9T10L<br />
12T14L<br />
18T<br />
8L<br />
23T<br />
3L<br />
29T<br />
3L<br />
18<br />
30<br />
0<br />
9<br />
0<br />
30L<br />
9T21L<br />
11T11L<br />
15T15L<br />
21T<br />
9L<br />
28T<br />
2L<br />
35T<br />
5L<br />
30<br />
50<br />
0 11<br />
0<br />
36L<br />
11T25L<br />
13T14L<br />
18T18L<br />
25T11L<br />
33T<br />
3L<br />
42T<br />
6L<br />
50<br />
80<br />
0 13<br />
0<br />
43L<br />
12T31L<br />
15T17L<br />
21T22L<br />
30T13L<br />
39T<br />
4L<br />
52T<br />
8L<br />
80<br />
120<br />
0 15<br />
0<br />
50L<br />
13T37L<br />
18T19L<br />
25T25L<br />
35T15L<br />
45T<br />
5L<br />
59T<br />
9L<br />
120<br />
150<br />
0 18<br />
0<br />
58L<br />
14T44L<br />
21T22L<br />
28T30L<br />
40T18L<br />
52T<br />
6L<br />
68T10L<br />
150<br />
180<br />
0 25<br />
0<br />
65L<br />
14T51L<br />
21T29L<br />
28T37L<br />
40T25L<br />
52T13L<br />
68T<br />
3L<br />
180<br />
250<br />
0 30<br />
0<br />
76L<br />
16T60L<br />
24T35L<br />
33T43L<br />
46T30L<br />
60T16L<br />
79T<br />
3L<br />
250<br />
315<br />
0 35<br />
0<br />
87L<br />
16T71L<br />
27T40L<br />
36T51L<br />
52T35L<br />
66T21L<br />
88T<br />
1L<br />
315<br />
400<br />
0 40<br />
0<br />
97L<br />
18T79L<br />
29T47L<br />
40T57L<br />
57T40L<br />
73T24L<br />
98T<br />
1L<br />
400 500 0 45 0108L<br />
20T88L<br />
32T53L<br />
Remarks: Fit symbols “L” and “T” represent bearing clearance and interference respectively.<br />
45T63L<br />
63T45L<br />
80T28L<br />
108T<br />
0<br />
A-34
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