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Home Products Bearing Clearance
　　7.1、Bearing clearance and specification
　　Clearance is gap amid bearing inner ring, outer ring, ball package. Bearing has radial clearance and axial clearance.

Table 7.1 Deep-groove ball bearing radial clearance
Nominal bearing
inner diameter
d（mm）
Clearance
C2
CN
C3
C4
C5
Exceed
Below
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
10
(Be limited to)
0
7
2
13
8
23
14
29
20
37
10
18
0
9
3
18
11
25
18
33
25
45
18
24
0
10
20
5
13
25
20
36
25
48
24
30
1
11
5
20
13
28
23
41
30
53
30
40
1
11
6
20
15
33
28
46
40
64
40
50
1
11
6
23
18
36
30
51
45
73
50
65
1
15
8
28
23
43
38
61
55
60
65
80
1
15
10
30
25
51
46
71
65
105
80
100
1
18
12
36
30
58
53
84
75
120
The radial clearance of MOS deep groove ball bearings is adopted also in the following table:
RADIAL INTERNAL CLEARANCE OF SMALL(D≥9,D＜10)、AND MINIATURE(D＜9)BEARINGS。
Clearance mark
MC1
MC2
MC3
MC4
MC5
MC6
Clearance
max
min
max
min
max
min
max
min
max
min
max
min
0
5
3
8
5
10
8
13
13
20
20
28
NOTE:STANDARD CLEARANCE IS MC3
RADIAL CLEARANCE OF MOTOR BEARING

Bore Diameter d(mm)
Clearance (CM)
over
to
min
max
10(inclusion)
18
5
11
18
30
5
12

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