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M3 module
Metal gear Pressure angle 20∘
GS: CheNa also provides SUS303 material, in a high humidity environment can
           have a good antirust .
GE:Standard gear (Rack) did not do heat treatment, if required heat treatment
           can be specified H series.
GH:Tooth surfaces make high frequency treatment, hardness of 43 to 45 degrees,
           strength and wear resistance would be better.
           SUS have no finish, just provide material [GS].

Material

Accuracy class

Teeth finish

SUS303

JIS 4
(DIN8e25)

Milling

S45C Carbon steel

S45C Carbon steel
+
Heat Treatment

Video  3D view Specification of product PDF
  
[Material & Finish chosen]
    
 M3–
    
    
   [ B Type can assignable D ]
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unit:mm

Number of teeth

Modulus

Tooth surface width
A

Shape

Hole shape

Mini. aperture
d

D

Number of teeth

Dp

Do

W-shaped Surplus material processing

Dp

Do

15

M3

25.4
31.7
38.1

B


W

(Loss
processing
)

   

8~

36

15

45

51

-

-

16

38

16

48

54

17

40

17

51

57

18

42

18

54

60

19

47

19

57

63

20

50

20

60

66

21

55

21

63

69

22

55

22

66

72

23

60

23

69

75

24

60

24

72

78

25

65

25

75

81

26

10~

65

26

78

84

27

68

27

81

87

28

70

28

84

90

29

75

29

87

93

30

75

30

90

96

31

85

31

93

99

32

85

32

96

102

33

12~

90

33

99

105

34

90

34

102

108

35

95

35

105

111

36

95

36

108

114

37

100

37

111

117

38

100

38

114

120

39

100

39

117

123

40

110

40

120

126

41

26~

110

41

123

129

42

110

42

126

132

43

120

43

129

135

44

120

44

132

138

45

120

45

135

141

46

120

46

138

144

47

120

47

141

147

48

120

48

144

150

49

120

49

147

153

50

120

50

150

156

120

S=Ax0.6

D diameter size can be changed according to design.