Tolerance Class: ABEC-1-Bearing Tolerance-Ktaiballbearing

INNER RING

d		^dmp		Vdp2)			Vdmp	Kia	^Bs		VBs
d				diameter series
mm				9	0, 1	2, 3, 4
over	incl.	high	low	max.			max.	max.	high	low	max.
1)0.6	2.5	0	-8	10	8	6	6	10	0	-40	12
2.5	10	0	-8	10	8	6	6	10	0	-120	15
10	18	0	-8	10	8	6	6	10	0	-120	20
18	30	0	-10	13	10	8	8	13	0	-120	20
30	50	0	-12	15	12	9	9	15	0	-120	20
50	80	0	-15	19	19	11	11	20	0	-150	25

1)0.6 is included.
2)No value for diameter series 7,8.

OUTER RING

D		^Dmp		VDp2)4)				VDmp4)	Kea	^Cs		VCs
D				open bearings			capped bearings 2)3)
mm				diameter series
mm				9	0, 1	2, 3, 4	2, 3, 4
over	incl.	high	low	max.				max.	max.	high	low	max.
1)2.5	6	0	-8	10	8	6	10	6	15	identical to ^Bs and VBs of inner ring of same bearing
6	18	0	-8	10	8	6	10	6	15
18	30	0	-9	12	9	7	12	7	15
30	50	0	-11	14	11	8	16	8	20
50	80	0	-13	16	13	10	20	10	25
80	120	0	-15	19	19	11	26	11	35
120	150	0	-18	23	23	14	30	14	40

1)2.5 is included.
2)No values for diameter series 9, 0, 1.
3)No values for diameter series 7, 8.
4)Fit for before assembling and after disestablish of snap ring.

ABEC Tolerance for Inch Ball Bearings

inch		mm
over	incl.	over	incl.
0.0984	0.2362	2.5	6
0.2362	0.3937	6	10
0.3937	0.7087	10	18
0.7087	1.1811	18	30
1.1811	1.9685	30	50
1.9685	3.1496	50	80
3.1496	4.7244	80	120