BS (081-1) Sprockets – 1/2

BS (081-1) Sprockets – 1/2

Tooth radius: r3 = 13
Radius size: C = 1.0
Tooth width: B1 = 3.0
From 31 teeth dimension h = 5mm

No. teeth

Outside dia. de

Pitch
dia. dp

Boss dia.

Bore
D1*

Overall width A

8

37.2

33.18

21

8

14

9

41.5

37.13

25

8

14

10

46.2

41.10

28

8

14

11

49.6

45.07

31

8

16

12

53.9

49.07

35

8

16

13

58.4

53.06

39

8

16

14

62.8

57.07

43

8

16

15

66.8

61.09

47

8

16

16

70.9

65.10

50

10

18

17

74.9

69.11

50

10

18

18

78.9

73.14

50

10

18

19

82.9

77.16

50

10

18

20

86.9

81.19

50

10

18

21

91

85.22

60

12

20

22

95

89.24

60

12

20

23

99

93.27

60

12

20

24

103

97.29

60

12

20

No. teeth

Outside dia. de

Pitch
dia. dp

Boss dia.

Bore
D1*

Overall width A

25

107.1

101.33

60

12

20

26

111.2

105.36

70

16

20

27

115.4

109.40

70

16

20

28

119.4

113.42

70

16

20

29

123.4

117.46

70

16

20

30

127.5

121.50

70

16

20

31

131.5

125.54

70

16

20

32

135.5

129.56

70

16

20

33

139.6

133.60

70

16

20

34

143.6

137.64

70

16

20

35

147.6

141.68

70

16

20

36

151.7

145.72

70

16

25

37

155.7

149.76

70

16

25

38

159.8

153.80

70

16

25

39

163.8

157.83

70

16

25

40

167.8

161.87

70

16

25

* 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