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S8M
Timing pulley Pitch:8.0mm
Material:Aluminum A6061+Anodized
※Teeth<44、L size= (W+15);Teeth≧44、L size= (W+20)

  Belt width 

15

20

25

30

40

55

  Face width 

A=17

W=22

A=22

W=27

A=28

W=33

A=33

W=38

A=44

W=49

A=44

W=49

Video  3D view Specification of product PDF
 
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※ Please refer to the specifications for details.
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 How to order?
How to order

 

 

 

 

unit:mm

Number of teeth

Belt width

shape

Hole shape

Shaft hole d

P.D

O.D

D

E

Fod

Processing minimum

18

S8M-15


S8M-20


S8M-25


S8M-30


S8M-40


S8M-55

AF






BF

 

 

 

 

 

 

 

12

45.84

44.46

32

35

50

19

 

 

H

Round hole

 

 

12

48.38

47.01

35

40

55

20

 

 

 

12

50.93

49.56

36

40

55

21

 

 

12

53.48

52.1

40

43

60

22

 

 

12

56.02

54.65

41

44

62

23

 

 

12

58.57

57.2

42

45

65

24

 

 

16

61.12

59.74

46

50

70

25

 

 

16

63.66

62.29

46

50

70

26

 

 

16

66.21

64.84

51

55

75

27

 

 

16

68.75

67.38

51

55

75

28

 

 

16

71.3

69.93

52

60

80

29

 

 

 

 

 

 

 

16

73.85

72.48

54

60

80

30

 

 

P

Round hole + tapping

 

16

76.39

75.02

60

65

85

31

 

 

 

16

78.94

77.57

62

65

85

32

 

 

16

81.49

80.12

63

70

90

33

 

 

16

84.03

82.66

65

70

90

34

 

 

16

86.58

85.21

70

75

95

35

 

 

16

89.13

87.75

70

75

95

36

 

 

20

91.67

90.3

75

80

99

37

 

 

20

94.22

92.85

75

80

99

38

 

 

20

96.77

95.39

80

85

105

39

 

 

20

99.31

97.94

80

85

105

40

 

Shaft aperture

Tapping

 

20

101.86

100.49

85

90

110

41

 

6~12

M4

 

20

104.41

103.03

85

90

110

42

 

13~17

M5

 

20

106.95

105.58

88

95

115

43

 

18~30

M6

 

20

109.5

108.13

88

95

115

44

 

31~44

M8

 

20

112.05

110.67

90

98

118

45

 

45~65

M10

 

20

114.59

113.22

90

98

118

46

 

KP:Specify a 90 degree tap

 

20

117.14

115.77

95

105

125

47

 

 

 

 

 

 

 

20

119.68

118.31

95

105

125

48

 

 

N

Keyway + tapping

 

20

122.23

120.86

100

110

128

49

 

 

 

New JIS_B_1301

 

 

20

124.78

123.41

100

110

135

50

 

 

 

20

127.32

125.95

100

110

135

51

 

 

20

129.87

128.5

100

115

140

52

 

 

20

132.42

131.04

100

115

140

53

 

 

20

134.96

133.59

100

120

146

54

 

 

20

137.51

136.14

100

120

146

55

 

 

20

140.06

138.68

100

125

152

56

 

 

20

142.6

141.23

100

125

152

57

 

 

20

145.15

143.78

100

125

157

58

 

Shaft aperture

kw(Js9)

kh

Tapping

 

20

147.7

146.32

100

125

157

59

 

8~10

3

1.4

M4

 

20

150.24

148.87

100

128

160

60

 

11~12

4

1.8

 

20

152.79

151.42

100

128

160

70

 

13~17

5

2.3

M5

 

20

178.25

176.88

100

157

188

72

 

18~22

6

2.8

M6

 

20

183.35

181.97

100

157

188

80

 

23~30

8

3.3

 

20

203.72

202.35

100

180

210

90

 

31~38

10

3.3

M8

 

20

229.18

227.81

100

195

235

100

 

 

 

 

 

 

 

20

254.65

253.28

100

220

260