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8M
Timing pulley Pitch:8.0mm
Material:Aluminum A6061+Anodized
L size= (W+20)

Belt width 
(mm)

15

20

25

30

  Face width 

A=17

W=22

A=22

W=27

A=28

W=33

A=33

W=38

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How to order

 

 

 

 

 

 

 

 

Number

of teeth

Belt width

Shape

Hole shape

Aperture d

P.D

O.D

D

E

Fod

 

Processing min.

 

18

 

 

 

 

 

 

 

 

 

12

45.84

44.46

32

35

50

 

19

 

 

 

 

H

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

40

44

62

 

23

 

 

 

 

12

58.57

57.2

42

45

65

 

24

 

 

 

 

16

61.12

59.74

44

50

70

 

25

 

 

 

 

16

63.66

62.29

46

50

70

 

26

 

 

 

 

16

66.21

64.84

48

55

75

 

27

 

 

 

 

16

68.75

67.38

50

55

75

 

28

 

 

 

 

 

 

 

 

 

16

71.3

69.93

52

60

80

 

29

 

 

 

 

 

 

 

 

 

16

73.85

72.48

54

60

80

 

30

 

 

 

 

P

Hole+Tapping 120º

 

 

16

76.39

75.02

56

65

85

 

31

 

 

 

 

 

16

78.94

77.57

58

65

85

 

32

 

 

 

 

16

81.49

80.12

60

70

90

 

33

8M-15

 

 

 

16

84.03

82.66

62

70

90

 

34

 

 

 

 

16

86.58

85.21

64

75

95

 

35

 

 

 

 

16

89.13

87.75

66

75

95

 

36

 

 

 

 

20

91.67

90.3

68

80

99

 

37

8M-20

 

 

 

20

94.22

92.85

70

80

99

 

38

 

 

 

 

20

96.77

95.39

72

85

105

 

39

 

AF

 

Axis aperture

Tapping

 

20

99.31

97.94

74

85

105

 

40

 

 

 

6~12

M4

 

20

101.86

100.49

74

90

110

 

41

8M-25

 

 

13~17

M5

 

20

104.41

103.03

76

90

110

 

42

 

 

 

18~30

M6

 

20

106.95

105.58

76

95

115

 

43

 

BF

 

31~44

M8

 

20

109.5

108.13

78

95

115

 

44

 

 

 

45~65

M10

 

20

112.05

110.67

78

98

118

 

45

8M-30

 

 

KP : Tapping designated 90

 

20

114.59

113.22

78

98

118

 

46

 

 

 

 

 

 

 

 

 

20

117.14

115.77

80

105

125

 

47

 

 

 

 

N

Keyway+Tapping

 

20

119.68

118.31

80

105

125

 

48

 

 

 

 

 

New JIS_B_1301

 

20

122.23

120.86

80

110

128

 

49

8M-40

 

 

 

 

20

124.78

123.41

82

110

135

 

50

 

 

 

 

20

127.32

125.95

82

110

135

 

51

 

 

 

 

20

129.87

128.5

82

115

140

 

52

 

 

 

 

20

132.42

131.04

84

115

140

 

53

 

 

 

 

20

134.96

133.59

84

120

146

 

54

 

 

 

 

20

137.51

136.14

84

120

146

 

55

 

 

 

 

20

140.06

138.68

86

125

152

 

56

 

 

 

 

20

142.6

141.23

86

125

152

 

57

 

 

 

Axis aperture

kw(Js9)

kh

Tapping

 

20

145.15

143.78

86

125

157

 

58

 

 

 

8~10

3

1.4

M4

 

20

147.7

146.32

86

125

157

 

59

 

 

 

11~12

4

1.8

 

20

150.24

148.87

88

128

160

 

60

 

 

 

13~17

5

2.3

M5

20

152.79

151.42

88

128

160

 

70

 

 

 

18~22

6

2.8

M6

 

20

178.25

176.88

90

157

188

 

72

 

 

 

23~30

8

3.3

M8

 

20

183.35

181.97

90

157

188

 

80

 

 

 

31~38

10

3.3

20

203.72

202.35

100

180

210

 

90

 

 

 

KN : Tapping designated 90

 

20

229.18

227.81

100

195

235

 

100

 

 

 

 

 

 

 

 

 

20

254.65

253.28

100

220

260