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Current Location: Home >> Bearing Technology >> Tolerances tables
  Bearing Technology

Bearing Basic Technical How Bearings Works Lubricant Tables Material Tables
Radial Play Tables Tolerances Tables Tolerances Tips

Inner Ring Tolerances
(a) Inner Ring and Width – up to 2.5 mm bore  (Tolerances in .001 mm)

Grade

Mean Bore
Deviation

Single Bore Variation

Mean Bore
Variation

Width
Deviation

Width
Variation

Radial
Runout

Face Runout
/Bore

Face Runout/
Raceway

7,8,9

0

2,3

P0

+0/-8

10

8

6

6

+0/-40

12

10

-

-

P6

+0/-7

9

7

5

5

+0/-40

12

5

-

-

P5

+0/-5

5

4

4

3

+0/-40

5 (1)

4

7

7

P4

+0/-4

4

3

3

2

+0/-40

2.5 (1)

2.5

3

3
(1) applies to inner ring only

(b) Inner Ring and Width – over 2.5mm to 10 mm bore (Tolerances in .001 mm)

Grade

Mean Bore
Deviation

Single Bore Variation

Mean Bore
Variation

Width
Deviation

Width
Variation

Radial
Runout

Face Runout
/Bore

Face Runout/
Raceway

7,8,9

0

2,3

P0

+0/-8

10

8

6

6

+0/-120

15

10

-

-

P6

+0/-7

9

7

5

5

+0/-120

15

6

-

-

P5

+0/-5

5

4

4

3

+0/-120

5(1)

4

7

7

P4

+0/-4

4

3

3

2

+0/-120

2.5 (1)

2.5

3

3
(1) applies to inner ring only

(c) Inner Ring and Width – over 10mm to 18 mm bore (Tolerances in .001 mm)

Grade

Mean Bore
Deviation

Single Bore Variation

Mean Bore
Variation

Width
Deviation

Width
Variation

Radial
Runout

Face Runout
/Bore

Face Runout/
Raceway

7,8,9

0

2,3

P0

+0/-8

10

8

6

6

+0/-120

20

10

-

-

P6

+0/-7

9

7

5

5

+0/-120

20

7

-

-

P5

+0/-5

5

4

4

3

+0/-80

5(1)

4

7

7

P4

+0/-4

4

3

3

2

+0/-80

2.5 (1)

2.5

3

3
(1) applies to inner ring only

(d) Inner Ring and Width – over 18mm to 30 mm bore      (Tolerances in .001 mm)


Grade

Mean Bore
Deviation

Single Bore Variation

Mean Bore
Variation

Width
Deviation

Width
Variation

Radial
Runout

Face Runout
/Bore

Face Runout/
Raceway

7,8,9

0

2,3

P0

+0/-10

13

10

8

8

+0/-120

20

13

-

-

P6

+0/-8

10

8

6

6

+0/-120

20

8

-

-

P5

+0/-6

6

5

5

3

+0/-120

5(1)

4

8

8

P4

+0/-5

5

4

4

2.5

+0/-120

2.5 (1)

3

4

4
(1) applies to inner ring only

(e) Inner Ring and Width – over 30mm to 50 mm bore  (Tolerances in .001 mm)


Grade

Mean Bore
Deviation

Single Bore Variation

Mean Bore
Variation

Width
Deviation

Width
Variation

Radial
Runout

Face Runout
/Bore

Face Runout/
Raceway

7,8,9

0

2,3

P0

+0/-12

15

12

9

9

+0/-120

20

15

-

-

P6

+0/-10

13

10

8

8

+0/-120

20

10

-

-

P5

+0/-8

8

6

6

4

+0/-120

5(1)

5

8

8

P4

+0/-6

6

5

5

3

+0/-120

3 (1)

4

4

4
(1) applies to inner ring only

Outer Ring Tolerances
(f) Outer Ring– up to 6mm O.D.  (Tolerances in .001 mm)

Grade

Mean O.D.
Deviation

Single O.D. Variation

Mean O.D.
Variation

Width
Variation

Radial
Runout

Face
Runout
/O.D.

Face
Runout/
Raceway

7,8,9
open

0
open

2,3
open

0,2,3
ZZ,2RS

P0

+0/-8

10

8

6

10

6

(2)

15

-

-

P6

+0/-7

9

7

5

9

5

(2)

8

-

-

P5

+0/-5

5

4

4

-

3

5

5

8

8

P4

+0/-4

4

3

3

-

2

2.5

3

4

5
(2) same as inner ring value

(g) Outer Ring– over 6mm up to 18mm O.D.      (Tolerances in .001 mm)


Grade

Mean O.D.
Deviation

Single O.D. Variation

Mean O.D.
Variation

Width
Variation

Radial
Runout

Face
Runout
/O.D.

Face
Runout/
Raceway

7,8,9
open

0
open

2,3
open

0,2,3
ZZ,2RS

P0

+0/-8

10

8

6

10

6

(2)

15

-

-

P6

+0/-7

9

7

5

9

5

(2)

8

-

-

P5

+0/-5

5

4

4

-

3

5

5

8

8

P4

+0/-4

4

3

3

-

2

2.5

3

4

5
(2) same as inner ring value

(h) Outer Ring– over 18mm up to 30mm O.D.      (Tolerances in .001 mm)


Grade

Mean O.D.
Deviation

Single O.D. Variation

Mean O.D.
Variation

Width
Variation

Radial
Runout

Face
Runout
/O.D.

Face
Runout/
Raceway

7,8,9
open

0
open

2,3
open

0,2,3
ZZ,2RS

P0

+0/-9

12

9

7

12

7

(2)

15

-

-

P6

+0/-8

10

8

6

10

6

(2)

9

-

-

P5

+0/-6

6

5

5

-

3

5

6

8

8

P4

+0/-5

5

4

4

-

2.5

2.5

4

4

5
(2) same as inner ring value

(i) Outer Ring– over 30mm up to 50mm O.D.      (Tolerances in .001 mm)

Grade

Mean O.D.
Deviation

Single O.D. Variation

Mean O.D.
Variation

Width
Variation

Radial
Runout

Face
Runout
/O.D.

Face
Runout/
Raceway

7,8,9
open

0
open

2,3
open

0,2,3
ZZ,2RS

P0

+0/-11

14

11

8

16

8

(2)

20

-

-

P6

+0/-9

11

9

7

13

7

(2)

10

-

-

P5

+0/-7

7

5

5

-

4

5

7

8

8

P4

+0/-6

6

5

5

-

3

2.5

5

4

5
(2) same as inner ring value

(j) Outer Ring– over 50mm up to 80mm O.D.      (Tolerances in .001 mm)

Grade

Mean O.D.
Deviation

Single O.D. Variation

Mean O.D.
Variation

Width
Variation

Radial
Runout

Face
Runout
/O.D.

Face
Runout/
Raceway

7,8,9
open

0
open

2,3
open

0,2,3
ZZ,2RS

P0

+0/-13

16

13

10

20

10

(2)

25

-

-

P6

+0/-11

14

11

8

16

8

(2)

13

-

-

P5

+0/-9

9

7

7

-

5

6

8

8

10

P4

+0/-7

7

5

5

-

3.5

3

5

4

5
(2) same as inner ring value

Flange Tolerances
(k) All Sizes          (Tolerances in .001 mm)

Grade

Mean O.D.
Deviation

Mean Width
Deviation

P0

+125/-50

+0/-50

P6

+125/-50

+0/-50

P5

+0/-25

+0/-50

P4

+0/-25

+0/-50


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