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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 ] 
 2D drawing download  3D drawing download
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 How to order?
How to order

 

 

 

 

 

unit:mm

Number of teeth

Modulus

Tooth width

Wheel shape

Hole shape

Mini aperture

Wheel hub

Pitch diameter

Tooth top

W-shaped slug processing

A

d

D

Dp

Do

Dp

Do

12

M3

25.4

31.7

38.1

B





W

(Slug processing)

 

 

 

 

 

 

 

8

28

36

42

13

 

H

Round hole

 

 

30

39

45

14

 

 

 

32

42

48

15

 

 

36

45

51

16

 

 

38

48

54

17

 

 

39

51

57

18

 

 

40

54

60

19

 

 

45

57

63

20

 

 

50

60

66

21

 

 

52

63

69

22

 

 

 

 

 

 

 

54

66

72

23

 

 

 

 

 

 

 

56

69

75

24

 

P

Round hole +120°tapping

 

58

72

78

25

 

 

 

60

75

81

26

 

 

10

65

78

84

27

 

 

81

87

28

 

 

70

84

90

29

 

 

87

93

30

 

 

75

90

96

32

 

 

96

102

34

 

 

12

80

102

108

35

 

Shaft aperture

Tapping

 

105

111

36

 

6~12

M4

 

108

114

38

 

13~17

M5

 

114

120

40

 

18~30

M6

 

120

126

42

 

31~44

M8

 

16

126

132

44

 

45~65

M10

 

132

138

45

 

KP : Specify a 90 degree tap

 

135

141

46

 

 

 

 

 

 

 

138

144

48

 

N

Keyway + tapping

 

144

150

50

 

New JIS_B_1301

 

150

156

120

S=Ax0.6

52

 

 

 

20

156

162

126

54

 

 

162

168

132

55

 

 

165

171

135

56

 

 

168

174

138

58

 

 

174

180

144

60

 

 

180

186

150

62

 

 

186

192

156

64

 

 

192

198

162

65

 

Shaft aperture

Kw(Js9)

Kh

 

195

201

165

66

 

8~10

3

1.4

 

25

90

198

204

168

68

 

11~12

4

1.8

 

204

210

174

70

 

13~17

5

2.3

 

210

216

180

72

 

18~22

6

2.8

 

216

222

186

75

 

23~30

8

3.3

 

225

231

195

76

 

31~38

10

3.3

 

228

234

198

80

 

39~44

12

3.3

 

240

246

210

90

 

45~50

14

3.8

 

100

270

276

240

100

 

KN : Specify a 90 degree tap

 

300

306

270

120

 

 

 

 

 

 

 

130

360

366

330