Nominal
Size

d

D
h

No. Tooth

kg/1000

min.

max.

min.

max.

min.

max.

3

3.2

3.38

5.7

6

0.38

0.42

6

0.04

4

4.3

4.48

7.64

8

0.475

0.525

8

0.1

5

5.3

5.48

9.64

10

0.575

0.625

8

0.19

6

6.4

6.62

10.57

11

0.67

0.73

8

0.215

8

8.4

8.62

14.57

15

0.77

0.83

8

0.51

10

10.5

10.77

17.57

18

0.87

0.93

9

0.77

12

13

13.27

19.98

20.5

0.97

1.03

10

1.06

14

15

15.27

23.48

24

0.97

1.03

10

1.473

16

17

17.27

25.48

26

1.165

1.235

12

1.95

18

19

19.33

29.48

30

1.365

1.435

12

3.21

20

21

21.33

32.38

33

1.365

1.435

12

3.832

22

23

23.33

35.38

36

1.465

1.535

14

4.98

24

25

25.33

37.38

38

1.465

1.535

14

5.244

27

28

28.33

43.38

44

1.555

1.645

14

8.087

30

31

31.39

47.38

48

1.555

1.645

14

9.413