Segment

Outer Diameter

Segment

Inch

MM

Number

Inch

MM

Number

4

100

30T

14

355

40T

4

100

40T

14

355

60T

6

150

18T

14

355

80T

6

150

40T

16

406

40T

6

150

60T

16

406

60T

7

180

18T

16

406

80T

7

180

24T

18

457

60T

7

180

40T

18

457

80T

7

180

60T

18

457

100T

8

200

24T

20

508

60T

8

200

40T

20

508

80T

8

200

60T

20

508

100T

9

230

40T

22

560

80T

9

230

60T

22

560

100T

10

255

40T

22

560

120T

10

255

60T

24

610

80T

10

255

80T

24

610

100T

12

305

40T

24

610

120T

12

305

60T

24

610

140T

12

305

80T

26

660

100T