TOLERANCE

Bearing tolerances include dimensional tolerance and rotary tolerance or dimensional accuracy and running accuracy , are regulated by ISO or JIS standards (rolling bearing tolerances) For dimensional accuracy, these standards prescribe the tolerances necessary when Installing bearings on shafts or in housings. Running accuracy is defined as the allowable Limits for bearing run-out during operation.
According to dimension tolerances and run out accuracy, ETC EVO deep groove ball bearing are ranged from ABEC-1 to ABEC-7. ABEC-1 is standard grade.

DEEP GROOVE BALL BEARING TOLERANCE CLASS ABEC-1 (P0)

 

INNER RING

 

Tolerance in um.

 

d

 

 

 

 

V

 

 

 

 

 

 

 

mm

 

dmp

diameter Series

 

V dmp

K ia

Bs

v Bs

 

 

 

 

 

9

0,1

2,3,4

 

 

 

 

 

 

over

incl

high

low

 

max.

 

max.

max.

high

low

max.

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

120

0

-20

25

25

12

12

25

0

-200

25

 

120

180

0

-25

31

31

19

19

30

0

-250

30

 

Notes :

 

1)0.6 is included

2)No values for diameter series 7,8.

 

 

OUTER RING

 

tolerance in um.

 

 

 

 

 

 

V Dp

 

 

 

 

 

 

 

D

 

Dmp

 

Open Bearings

 

Capped

V Dmp

Kea

Cs

V Cs

 

mm

 

 

Diameter Series

Bearings

 

 

 

 

 

 

 

 

 

9

0,1

2,3,4

2,3,4

 

 

 

 

 

Over

incl

high

low

 

max.

 

 

max.

max.

high low

max.

 

2/5

6

0

-8

10

8

6

10

6

15

 

 

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

ldentical to

 

50

80

0

-13

16

13

10

20

10

25

Bs and

V Bs

 

80

120

0

-15

19

19

11

26

11

35

of inner ring of

 

 

 

 

 

 

 

 

same bearing

 

120

150

0

-18

23

23

14

30

14

40

 

 

150

180

0

-25

31

31

19

38

19

45

 

 

180

250

0

-30

38

38

23

 

23

50

 

 

 

Note :

 

1)2.5 is included

3) No values for diameter series 9,0,1.

 

2) No values for diameter series 7,8.

4)Fit for before assembling and after disestablishing of snap

 

rings.

 

 

 

lnch-dimension equivalent formula

 

1 inch= 25.4 mm

 

 

 

 

 

 

 

 

 

 

 

1 mm= 0.0393700787 inch

 

 

 

 

DEEP GROOVE BALL BEARING TOLERANCE CLASS ABEC-3 (P6)

 

INNER RING

 

Tolerance in um.

 

d

 

 

 

V

 

 

 

 

 

 

 

mm

dmp

diameter Series

 

V dmp

K ia

Bs

v Bs

 

 

 

 

 

9

0,1

2,3,4

 

 

 

 

 

 

over

incl

high

low

 

max.

 

max.

max.

high

low

max.

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

120

0

-15

19

19

11

11

13

0

-200

25

 

120

180

0

-18

23

23

14

14

18

0

-250

30

 

Notes :

 

1)0.6 is included

2)No values for diameter series 7,8.

 

 

OUTER RING

 

tolerance in um.

 

 

 

 

 

 

V Dp

 

 

 

 

 

 

 

D

Dmp

 

Open Bearings

 

Capped

V Dmp

Kea

Cs

V Cs

 

mm

 

Diameter Series

 

Bearings

 

 

 

 

 

 

 

 

 

9

0,1

2,3,4

2,3,4

 

 

 

 

 

Over

incl.

high

low

 

max.

 

 

max.

max.

high low

max.

 

2/5

6

0

-7

9

7

5

9

5

8

 

 

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

ldentical to

 

50

80

0

-11

14

11

8

16

8

13

Bs and

V Bs

 

80

120

0

-13

16

16

10

20

10

18

of inner ring of

 

 

 

 

 

 

 

 

same bearing

 

120

150

0

-15

19

19

11

25

11

20

 

 

150

180

0

-18

23

23

14

30

14

23

 

 

180

250

0

-20

25

25

15

 

15

25

 

 

 

Note :

 

1)2.5 is included.

3) No values for diameter series 9.

 

2) No values for diameter series 7,8.

4)Fit for before assembling and after disestablishing of snap

 

rings.

 

 

 

lnch-dimension equivalent formula

 

1 inch= 25.4 mm

 

 

 

 

 

 

 

 

 

 

 

1 mm= 0.0393700787 inch

 

 

 

 

 

 

 

DEEP GROOVE BALL BEARING TOLERANCE CLASS ABEC-5 (P5)

 

INNER RING

 

Tolerance in um.

 

d

 

 

v

dp

 

 

 

 

 

 

 

 

mm

dmp

Diameter Series

V dmp

K ia

Sd

Sia

Bs

v Bs

 

 

 

 

 

9

0,1,2,3,4

 

 

 

 

 

 

 

 

over

incl.

high

low

max.

 

max.

max.

max.

max.

high

low

max.

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

120

0

-10

10

8

5

6

9

9

0

-200

7

 

120

180

0

-13

13

10

7

8

10

10

0

-250

8

 

Notes :

 

1)0.6 is included

3) Fit for groove ball bearing only.

 

2)No values for diameter series 7,8.

 

OUTER RING

 

tolerance in um.

 

D

 

 

v

dp

 

 

 

 

 

 

 

 

mm

Dmp

Diameter Series

VDmp

Kea

SD

Sea

Cs

v Bs

 

 

 

 

 

9

0,1,2,3,4

 

 

 

 

 

 

 

 

over

incl.

high

low

max.

 

max.

max.

max.

max.

high

low

max.

 

2/5

6

0

-5

5

4

3

5

8

8

 

 

5

 

6

18

0

-5

5

4

3

5

8

8

ldentical to

5

 

18

30

0

-6

6

5

3

6

8

8

 

Bs

5

 

 

 

 

 

 

 

 

 

 

of inner ring of

 

 

30

50

0

-7

7

5

4

7

8

8

same bearing

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

 

150

180

0

-13

13

10

7

13

10

14

 

 

8

 

180

250

0

-15

15

11

8

15

11

15

 

 

10

 

Note :

 

1)2.5 is included

4)No values for flanged bearing.

 

2) No values for diameter series 7,8.

5)Fit for groove ball bearings.

 

3) No values for shielded and sealed bearings.

 

 

 

lnch-dimension equivalent formula

 

1 inch= 25.4 mm

 

 

 

 

 

 

 

 

 

 

 

1 mm= 0.0393700787 inch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DEEP GROOVE BALL BEARING TOLERANCE CLASS ABEC-7 (P4)

INNER RING

Tolerance in um.

d

 

 

 

 

v

dp

 

 

 

 

 

 

 

mm

dmp

ds

Diameter Series

V dmp

K ia

Sd

Sia

Bs

v Bs

 

 

 

 

 

 

7,8,9

1,7,2,3,4

 

 

 

 

 

 

 

over

incl

high

low

high

low

max.

 

max.

max.

max.

max.

high

low

max.

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

5

3

4

4

4

0

-120

3

50

80

0

-7

0

-7

7

5

3/5

4

5

5

0

-150

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

120

0

-8

0

-8

8

6

4

5

5

5

0

-200

4

120

180

0

-10

0

-10

10

8

5

6

6

7

0

-250

5

Notes :

1)0.6 is included

2)Dimeter Series 7 refers to those defined by GB 273.3

as the miniature bearing series 7.

OUTER RING

tolerance in um.

D

 

 

 

 

v

dp

 

 

 

 

 

 

 

mm

Dmp

Ds

Diameter Series

V Dmp

Kca

SD

Sea

cs

v Cs

 

 

 

 

 

 

7,8,9

1,7,2,3,4

 

 

 

 

 

 

 

over

incl.

high

low

high

low

max.

 

max.

max.

max.

max.

high

low

max.

2/5

6

0

-4

0

-4

4

3

2

3

4

5

 

 

2/5

6

18

0

-4

0

-4

4

3

2

3

4

5

ldentical

2/5

18

30

0

-4

0

-5

5

4

2/5

4

4

5

to

Bs

2/5

 

 

 

 

 

 

 

 

 

 

 

of inner

 

30

50

0

-5

0

-6