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Technic Data > Accuracy > TOLERANCE CLASS -ABEC-1

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.
2)No values for diameter series 7,8.
3)No values for diameter seriers9,0,1.
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
 
 
 
 
 
 
 
 
 
 
 
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