Radial internal clearance of self-aligning ball bearings

















Bore diameter Radial internal clearance
d C2 Normal C3
> min. max. min. max. min. max.
mm µm

Bearings with a cylindrical bore








2,5 6 1
8
5
15 10
20
6 10 2
9
6
17 12
25
10 14 2
10
6
19 13 26








14 18
3
12 8
21 15 28
18
24
4
14 10
23 17 30
24
30 5
16 11
24 19 35








30 40 6
18 13
29 23
40
40 50
6
19 14
31
25 44
50 65
7
21
16 36 30
50








65
80
8
24
18 40
35 60
80
100 9
27 22
48 42
70
100 120 10
31
25
56
50
83








120 140 10
38
30
68
60
100
140 160




70
120
160 180




82
138








180 200



93
157
200 225



100
170
225 250



115
195








Bearings with a tapered bore

18
24


13
26
30
33
24
30


15
28
23
39
30 40

19
35 29
46








40 50

22
39
33
52
50 65

27
47
41
61
65
80


35
57
50
75








80
100

42
68
62
90
100
120

50 81
75
108

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