TOLERANCE CLASS ABEC-3
INNER RING	Tolerance in um.

d		^dmp		Vdp2)			Vdmp	Kia	^Bs		VBs
				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	-7	9	7	5	5	5	0	-40	12
2.5	10	0	-7	9	7	5	5	6	0	-120	15
10	18	0	-7	9	7	5	5	7	0	-120	20
18	30	0	-8	10	8	6	6	8	0	-120	20
30	50	0	-10	13	10	8	8	10	0	-120	20
50	80	0	-12	15	15	9	9	10	0	-150	25

1)0.6 is included.

2)No values for diameter series 7,8

OUTER RING	Tolerance in um.

D		^Dmp		VDp2)4)				VDmp4)	Kea	^Cs		VCs
				Open Bearings			Capped Bearings3)
mm
				Diameter Series
				9	0,1	2,3,4	0,1,2,3,4
over	incl.	high	low	max				max.	max.	high	low	max.
1)2.5	6	0	-7	9	7	5	9	5	8	Identical to^Bs and VBsof inner ring ofsame bearing
6	18	0	-7	9	7	5	9	5	8
18	30	0	-8	10	8	6	10	6	9
30	50	0	-9	11	9	7	13	7	10
50	80	0	-11	14	11	8	16	8	13
80	120	0	-13	16	16	10	20	10	18
120	150	0	-15	19	19	11	25	11	20

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

TOLERANCE CLASS ABEC-7
INNER RING	Tolerance in um.

d		^dmp		^ds		Vdp2)		Vdmp	Kia	Sd	Sia	^Bs		VBs
						Diameter Series
mm						7,8,9	1,7,2,3,4
over	incl.	high	low	high	low	max.		max.	max.	max.	max.	high	low	max.
1)0.6	2.5	0	-4	0	-4	4	3	2	2.5	3	3	0	-40	2.5
2.5	10	0	-4	0	-4	4	3	2	2.5	3	3	0	-40	2.5
10	18	0	-4	0	-4	4	3	2	2.5	3	3	0	-80	2.5
18	30	0	-5	0	-5	5	4	2.5	3	4	4	0	-120	2.5
30	50	0	-6	0	-6	6	4	3	4	4	4	0	-120	3
50	80	0	-7	0	-7	7	5	3.5	4	5	5	0	-150	4

1)0.6 is included.
2)Diameter Series 7 refers to those defined by GB273.3 as the miniature bearing series 7.

OUTER RING	Tolerance in um.

d		^Dmp		^Ds		Vdp2)		VDmp	Kia	SD	Sea	^Cs		VCs
mm						Diameter Series
						7,8,9	1,7,2,3,4
over	incl.	high	low	high	low	max.		max.	max.	max.	max.	high	low	max.
1)2.5	6	0	-4	0	-4	4	3	2	3	4	5	Identical to ^Bs of inner ring of same bearing		2.5
6	18	0	-4	0	-4	4	3	2	3	4	5			2.5
18	30	0	-5	0	-5	5	4	2.5	4	4	5			2.5
30	50	0	-6	0	-6	6	5	3	5	4	5			2.5
50	80	0	-7	0	-7	7	5	3.5	5	4	5			3
80	120	0	-8	0	-8	8	6	4	6	5	6			4
120	150	0	-9	0	-9	9	7	5	7	5	7			5

1)2.5 is included.
2)These windage is applicable for diameter series 1.7.2.3.and 4.
3)Not applicable for closed type bearings
4)Diameter Series 7 refers to those defined by GB273.3 as the miniature bearing series 7.

TOLERANCE CLASS ABEC-5
INNER RING.	Tolerance in um.

d		^dmp		Vdp2)		Vdmp	Kia	Sd	Sia3)	^Bs		VBs
				Diameter Series
mm
				9	0,1,2,3,4
over	incl.	high	low	max.		3	max.	max.	max.	high	low	max.
1)0.6	2.5	0	-5	5	4	3	4	7	7	0	-40	5
2.5	10	0	-5	5	4	3	4	7	7	0	-40	5
10	18	0	-5	5	4	3	4	7	7	0	-80	5
18	30	0	-6	6	5	3	4	8	8	0	-120	5
30	50	0	-8	8	6	4	5	8	8	0	-120	5
50	80	0	-9	9	7	5	5	8	8	0	-150	6

1)0.6 is included.
2)No values for diameter series 7,8.
3)Fit for groove ball bearing only.

OUTER RING	Tolerance in um.

D		^Dmp		VDp2)3)		VDmp	Kea	SD4)	Sea4)5)	^Cs		VCs
				Diameter Series				SD15)
mm				9	0,1,2,3,4
over	incl.	high	low	max.		max.	max.	max.	max.	high	low	max.
1)2.5	6	0	-5	5	4	3	5	8	8	Identical to ^Bs of innerring of same bearing		5
6	18	0	-5	5	4	3	5	8	8			5
18	30	0	-6	6	5	3	6	8	8			5
30	50	0	-7	7	5	4	7	8	8			5
50	80	0	-9	9	7	5	8	8	10			6
80	120	0	-10	10	8	5	10	9	11			8
120	150	0	-11	11	8	6	11	10	13			8

1)2.5 is included.
2)No values for diameter series 7,8
3)No values for shielded and sealed bearings
4)No for flanged bearings
5)Fit for groove ball bearings

TOLERANCE CLASS ABEC-1
INNER RING	Tolerance in um

d		^dmp		Vdp2)			Vdmp	Kia	^Bs		VBs
				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	Tolerance in um

D		^Dmp		VDp2)4)				VDmp4)	Kea	^Cs		VCs
				Open Bearings			Capped Bearings2)3)
mm
				Diameter Series
				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.

3)No values for diameter seriers9,0,1.

2)No values for diameter series 7,8.

4)Fit for before assembling and after disestablish of snap rings.

ABEC STANDARD BEARING TOLERANCES FOR INCH-DIMENSION BALL BEARINGS (See corresponding metric grouping)

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