Quality Transmission is the largest North American supplier of off-the-shelf metric gearing. KHK Stock Gears are proudly produced by Kohara Gear Industry of Saitama Japan and stocked in North America by Quality Transmission Components


 

Specifications
Precision grade JIS Grade N9 (JIS B 1702-1:1998)
JIS Grade 5 (JIS B 1702:1976)		 Core hardness HRR115120
Gear teeth Standard full depth Surface hardness
Pressure angle 20 Surface treatment -
Material MC601st Nylon with
S45c Steel core		 Surface finish Hobbed
Heat treatment - Datum reference
surface for gear cutting		 Bore

S1

Module 2

Catalog No. Module No. of teeth Bore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Metal core dia. Shape Allowable
torque(kgfm)		 Allowable
torque(Nm)		 Backlash
(mm)		 Weight
(kgf)		 Catalog No.
m z AH7 B C D E F G H Bending
strength		 Bending
strength
NSU2-20
[ DXF| DWG| 3D CAD]
NSU2-22
[ DXF| DWG| 3D CAD]
NSU2-24
[ DXF| DWG| 3D CAD]
NSU2-25
[ DXF| DWG| 3D CAD]
NSU2-28
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 20

22

24

25

28		 10

10

10

10

10		 22

30

30

30

35		 40

44

48

50

56		 44

48

52

54

60		 20

20

20

20

20		 14

14

14

14

14		 34

34

34

34

34		 22

30

30

30

35		 S1

S1

S1

S1

S1		 0.6907

0.7807

0.8715

0.9205

1.061		 6.773

7.656

8.546

9.027

10.4		 0.180.34

0.180.34

0.180.34

0.180.34

0.20.36		 0.1

0.19

0.2

0.2

0.27		 NSU2-20

NSU2-22

NSU2-24

NSU2-25

NSU2-28
NSU2-30
[ DXF| DWG| 3D CAD]
NSU2-32
[ DXF| DWG| 3D CAD]
NSU2-34
[ DXF| DWG| 3D CAD]
NSU2-35
[ DXF| DWG| 3D CAD]
NSU2-36
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 30

32

34

35

36		 10

12

12

12

12		 35

40

40

40

40		 60

64

68

70

72		 64

68

72

74

76		 20

20

20

20

20		 14

14

14

14

14		 34

34

34

34

34		 35

40

45

45

45		 S1

S1

S1

S1

S1		 1.154

1.253

1.355

1.408

1.461		 11.32

12.29

13.29

13.81

14.33		 0.20.36

0.20.36

0.20.36

0.20.36

0.20.36		 0.28

0.36

0.41

0.41

0.42		 NSU2-30

NSU2-32

NSU2-34

NSU2-35

NSU2-36
NSU2-40
[ DXF| DWG| 3D CAD]
NSU2-44
[ DXF| DWG| 3D CAD]
NSU2-45
[ DXF| DWG| 3D CAD]
NSU2-48
[ DXF| DWG| 3D CAD]
NSU2-50
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 40

44

45

48

50		 15

15

15

15

15		 55

55

55

60

60		 80

88

90

96

100		 84

92

94

100

104		 20

20

20

20

20		 14

14

14

14

14		 34

34

34

34

34		 60

60

60

65

65		 S1

S1

S1

S1

S1		 1.668

1.876

1.93

2.092

2.203		 16.36

18.4

18.93

20.52

21.6		 0.20.36

0.20.36

0.20.36

0.20.36

0.20.36		 0.71

0.73

0.75

0.88

0.9		 NSU2-40

NSU2-44

NSU2-45

NSU2-48

NSU2-50
NSU2-56
[ DXF| DWG| 3D CAD]
NSU2-60
[ DXF| DWG| 3D CAD]
NSU2-68
[ DXF| DWG| 3D CAD]
NSU2-70
[ DXF| DWG| 3D CAD]
NSU2-80
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 56

60

68

70

80		 15

15

15

15

15		 60

60

60

60

60		 112

120

136

140

160		 116

124

140

144

164		 20

20

20

20

20		 14

14

14

14

14		 34

34

34

34

34		 65

85

100

105

125		 S1

S1

S1

S1

S1		 2.508

2.716

3.128

3.233

3.755		 24.59

26.63

30.67

31.7

36.82		 0.220.38

0.220.38

0.220.38

0.220.38

0.220.38		 0.94

1.3

1.65

1.78

2.37		 NSU2-56

NSU2-60

NSU2-68

NSU2-70

NSU2-80
 

CAUTION: Although the holding strength at the material interface is designed to be stronger than the teeth, a secondary operation may weaken the holding strength.

CAUTION: When the core O.D. is the same as the hub diameter, you may see some serration on the hub. There is no effect on the strength of the gear due to these serrations.

NOTE: The allowable torques shown in the table are calculated using the Lewis formula. The backlash values shown are the theoretical values of a pair of identical gears in mesh. All dimensions shown in the above table(s) are listed in millimeters unless otherwise specified.

 

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