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    Motor Technology - Shaft diameters
request details  and corresponding key and keyway dimensions
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Below is a reference on shaft diameters and the corresponding keys / keyways according to the prevailing standards.

The table, to the best of our knowledge, complies with:

bullet

DIN6885 Pt.1

bullet

ISO R 773 and

bullet

BS4235 Pt.1

 

  

Shaft Outer Diameter

Width

Height

Depth

Tolerance

Depth

Tolerance

(OD) in mm

b

h

t1

rt1

t2

rt2

over 6 to 8

2

2

1.2

+0.1

1

+0.1

over 8 to 10

3

3

1.8

+0.1

1.4

+0.1

over 10 to 12

4

4

2.5

+0.1

1.8

+0.1

over 12 to 17

5

5

3

+0.2

2.3

+0.2

over 17 to 22

6

6

3.5

+0.2

2.8

+0.2

over 22 to 30

8

7

4

+0.2

3.3

+0.2

over 30 to 38

10

8

5

+0.2

3.3

+0.2

over 38 to 44

12

8

5

+0.2

3.3

+0.2

over 44 to 50

14

9

5.5

+0.2

3.8

+0.2

over 50 to 58

16

10

6

+0.2

4.3

+0.2

over 58 to 65

18

11

7

+0.2

4.4

+0.2

over 65 to 75

20

12

7.5

+0.2

4.9

+0.2

over 75 to 85

22

14

9

+0.2

5.4

+0.2

over 85 to 95

25

14

9

+0.2

5.4

+0.2

over 95 to 110

28

16

10

+0.2

6.4

+0.2

over 110 to 130

32

18

11

+0.2

7.4

+0.2

over 130 to 150

36

20

12

+0.3

8.4

+0.3

over 150 to 170

40

22

13

+0.3

9.4

+0.3

over 170 to 200

45

25

15

+0.3

10.4

+0.3

over 200 to 230

50

28

17

+0.3

11.4

+0.3

over 230 to 260

56

32

20

+0.3

12.4

+0.3

over 260 to 290

63

32

20

+0.3

14.4

+0.3

over 290 to 330

70

36

22

+0.3

15.4

+0.3

over 330 to 380

80

40

25

+0.3

17.4

+0.3

over 380 to 440

90

45

28

+0.3

17.4

+0.3

over 440 to 500

100

50

31

+0.3

19.5

+0.3

 

Note

Motor Technology will not accept any liability for the accuracy of the data supplied. This sheet is meant as a guideline only.