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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