BS (08B) Sprockets – 1/2

BS (08B) Sprockets – 1/2

Tooth radius: r3 = 13
Radius size: C = 1.3
Tooth width: B1 = 7.2
Tooth width: b1 = 7.0
Tooth width: B2 = 21.0
Tooth width: B3 = 34.9

No.
teeth

Outside
dia. de

Pitch
dia. dp

Simplex*

Duplex*

Triplex*

dm

D1

A

dm

D1

A

dm

D1

A

8

37.2

33.18

20

10

25

20

10

32

20

10

46

9

41.0

37.13

24

10

25

24

10

32

24

12

46

10

45.2

41.10

26

10

25

28

10

32

28

12

46

11

48.7

45.07

29

10

25

22

12

35

32

14

50

12

53.0

49.07

33

10

28

35

12

35

35

14

50

13

57.4

53.06

37

10

28

38

12

35

38

14

50

14

61.8

57.07

41

10

28

42

12

35

42

14

50

15

65.5

61.09

45

10

28

46

12

35

46

14

50

16

69.5

65.10

50

12

28

50

14

35

50

16

50

17

73.6

69.11

52

12

28

54

14

35

54

16

50

18

77.8

73.14

56

12

28

58

14

35

58

16

50

19

81.7

77.16

60

12

28

62

14

35

62

16

50

20

85.8

81.19

64

12

28

66

14

35

66

16

50

21

89.7

85.22

68

12

28

70

16

40

70

20

55

22

93.8

89.24

70

12

28

70

16

40

70

20

55

23

98.2

93.27

70

14

28

70

16

40

70

20

55

24

101.8

97.29

70

14

28

75

16

40

75

20

55

25

105.8

101.33

70

14

28

80

16

40

80

20

55

26

110.0

105.36

70

16

30

85

20

40

85

20

55

No.
teeth

Outside
dia. de

Pitch
dia. dp

Simplex*

Duplex*

Triplex*

dm

D1

A

dm

D1

A

dm

D1

A

27

114.0

109.40

70

16

30

85

20

40

85

20

55

28

118.0

113.42

70

16

30

90

20

40

90

20

55

29

122.0

117.46

80

16

30

95

20

40

95

20

55

30

126.1

121.50

80

16

30

100

20

40

100

20

55

31

130.2

125.54

90

16

30

100

20

40

110

20

55

32

134.3

129.56

90

16

30

100

20

40

110

20

55

33

138.4

133.60

90

16

30

100

20

40

110

20

55

34

142.6

137.64

90

16

30

100

20

40

110

20

55

35

146.7

141.68

90

16

30

100

20

40

110

20

55

36

151.0

145.72

90

16

35

110

20

40

120

25

55

37

154.6

149.76

90

16

35

110

20

40

120

25

55

38

158.6

153.80

90

16

35

110

20

40

120

25

55

39

162.7

157.83

90

16

35

110

20

40

120

25

55

40

166.8

161.87

90

16

35

110

20

40

120

25

55

45

188.0

182.07

88

20

42

57

236.4

230.54

88

20

42

108

25

55

60

248.6

242.66

80

20

42

64

265.1

258.82

80

20

42

* Bore Ø H12

All dimensions in mm. Intermediate sizes & special sprockets to drawing up to 1000mm diameter. Standard: to DIN 8187 ISO/R 606

Available from stock

Special order – typically 7-10 days

NB: Please refer here for tooth sizes above 64 teeth.