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M2.5 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
  
[ Select material and surface treatment ]
      
 M2.5
 
     
     
  [ B shape can specify D path change ] 
※ Please refer to the specification preview for detailed dimensions .
 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

A

d

D

Dp

Do

12

M2.5

19
22.2
25.4

A
(For P hole shape only)








B

 

 

 

 

 

 

 

6

23

30

35

13

 

 

 

 

 

 

 

25

32.5

37.5

14

 

H

Round hole

 

 

25

35

40

15

 

 

 

8

30

37.5

42.5

16

 

 

32

40

45

17

 

 

35

42.5

47.5

18

 

 

38

45

50

19

 

 

39

47.5

52.5

20

 

 

40

50

55

21

 

 

42

52.5

57.5

22

 

 

44

55

60

23

 

 

 

 

 

 

 

46

57.5

62.5

24

 

 

 

 

 

 

 

48

60

65

25

 

 

 

 

 

 

 

50

62.5

67.5

26

 

P

      Round hole + tapping

 

55

65

70

27

 

 

 

60

67.5

72.5

28

 

 

60

70

75

29

 

 

62

72.5

77.5

30

 

 

65

75

80

32

 

 

70

80

85

34

 

 

10

85

90

35

 

 

87.5

92.5

36

 

 

90

95

38

 

 

 

95

100

40

 

Shaft aperture

Tapping

 

100

105

42

 

4~5

M3

 

105

110

44

 

6~12

M4

 

110

115

45

 

13~30

M5

 

112.5

117.5

46

 

KP : Specify a 90 degree tap

 

115

120

48

 

 

 

 

 

 

 

120

125

50

 

 

 

 

 

 

 

125

130

52

 

N

     Keyway + tapping

 

12

130

135

54

 

New JIS_B_1301

 

135

140

55

 

 

 

137.5

142.5

56

 

 

140

145

58

 

 

145

150

60

 

 

150

155

62

 

 

15

80

155

160

64

 

 

160

165

65

 

 

162.5

167.5

66

 

 

165

170

68

 

Shaft aperture

Kw(Js9)

Kh

 

170

175

70

 

8~10

3

1.4

 

175

180

72

 

11~12

4

1.8

 

180

185

75

 

13~17

5

2.3

 

20

187.5

192.5

76

 

18~22

6

2.8

 

190

195

80

 

23~30

8

3.3

 

200

205

90

 

KN : Specify a 90 degree tap

 

90

225

230

100

 

 

 

 

 

 

 

250

255

120

 

 

 

 

 

 

 

100

300

305