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 MC901 Nylon Surface finish Hobbed
Heat treatment - Datum reference
surface for gear grinding		 Bore

S1 S5

Module 2

Catalog No. Module No. of teeth Bore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Shape Allowable
torque (kgfm)		 Allowable
torque (Nm)		 Backlash
(mm)		 Weight
(kgf)		 Catalog No.
m z AH8 B C D E F G Bending
strength		 Bending
strength
PS2-12
[ DXF| DWG| 3D CAD]
PS2-13
[ DXF| DWG| 3D CAD]
PS2-14
[ DXF| DWG| 3D CAD]
PS2-15
[ DXF| DWG| 3D CAD]
PS2-16
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 12

13

14

15

16		 10

10

10

10

10		 18

20

20

24

26		 24

26

28

30

32		 28

30

32

34

36		 20

20

20

20

20		 10

10

10

10

10		 30

30

30

30

30		 S1

S1

S1

S1

S1		 0.2291

0.264

0.3014

0.335

0.3702		 2.247

2.589

2.956

3.285

3.63		 0.180.34

0.180.34

0.180.34

0.180.34

0.180.34		 0.011

0.013

0.015

0.016

0.022		 PS2-12

PS2-13

PS2-14

PS2-15

PS2-16
PS2-18
[ DXF| DWG| 3D CAD]
PS2-20
[ DXF| DWG| 3D CAD]
PS2-22
[ DXF| DWG| 3D CAD]
PS2-24
[ DXF| DWG| 3D CAD]
PS2-25
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 18

20

22

24

25		 10

10

10

10

10		 30

32

35

38

40		 36

40

44

48

50		 40

44

48

52

54		 20

20

20

20

20		 10

10

10

10

10		 30

30

30

30

30		 S1

S1

S1

S1

S1		 0.4322

0.5005

0.5657

0.6315

0.667		 4.238

4.908

5.548

6.193

6.541		 0.180.34

0.180.34

0.180.34

0.180.34

0.180.34		 0.029

0.032

0.043

0.052

0.059		 PS2-18

PS2-20

PS2-22

PS2-24

PS2-25
PS2-26
[ DXF| DWG| 3D CAD]
PS2-28
[ DXF| DWG| 3D CAD]
PS2-30
[ DXF| DWG| 3D CAD]		 2

2

2		 26

28

30		 10

10

10		 42

45

50		 52

56

60		 56

60

64		 20

20

20		 10

10

10		 30

30

30		 S1

S1

S1		 0.7032

0.7689

0.8363		 6.896

7.54

8.201		 0.20.36

0.20.36

0.20.36		 0.062

0.074

0.087		 PS2-26

PS2-28

PS2-30

Catalog No. Module No. of teeth Bore Pitch dia. Outside dia. Face width Total length Shape Allowable
torque (kgfm)		 Allowable
torque (Nm)		 Backlash
(mm)		 Weight
(kgf)		 Catalog No.
m z AH8 C D E G Bending
strength		 Bending
strength
PSA2-32
[ DXF| DWG| 3D CAD]
PSA2-35
[ DXF| DWG| 3D CAD]
PSA2-36
[ DXF| DWG| 3D CAD]
PSA2-40
[ DXF| DWG| 3D CAD]
PSA2-45
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 32

35

36

40

45		 12

12

12

12

12		 64

70

72

80

90		 68

74

76

84

94		 20

20

20

20

20		 20

20

20

20

20		 S5

S5

S5

S5

S5		 0.9082

1.02

1.059

1.209

1.398		 8.906

10

10.39

11.86

13.71		 0.20.36

0.20.36

0.20.36

0.20.36

0.20.36		 0.072

0.086

0.089

0.11

0.15		 PSA2-32

PSA2-35

PSA2-36

PSA2-40

PSA2-45
PSA2-48
[ DXF| DWG| 3D CAD]
PSA2-50
[ DXF| DWG| 3D CAD]
PSA2-55
[ DXF| DWG| 3D CAD]
PSA2-60
[ DXF| DWG| 3D CAD]
PSA2-65
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 48

50

55

60

65		 12

12

12

12

15		 96

100

110

120

130		 100

104

114

124

134		 20

20

20

20

20		 20

20

20

20

20		 S5

S5

S5

S5

S5		 1.516

1.596

1.78

1.968

2.154		 14.87

15.65

17.46

19.3

21.12		 0.20.36

0.20.36

0.220.38

0.220.38

0.220.38		 0.16

0.18

0.22

0.28

0.3		 PSA2-48

PSA2-50

PSA2-55

PSA2-60

PSA2-65
PSA2-70
[ DXF| DWG| 3D CAD]
PSA2-75
[ DXF| DWG| 3D CAD]
PSA2-80
[ DXF| DWG| 3D CAD]
PSA2-85
[ DXF| DWG| 3D CAD]
PSA2-90
[ DXF| DWG| 3D CAD]		 2

2

2

2

2		 70

75

80

85

90		 15

15

15

15

15		 140

150

160

170

180		 144

154

164

174

184		 20

20

20

20

20		 20

20

20

20

20		 S5

S5

S5

S5

S5		 2.343

2.536

2.721

2.908

3.098		 22.98

24.87

26.68

28.52

30.38		 0.220.38

0.220.38

0.220.38

0.220.38

0.220.38		 0.35

0.41

0.46

0.52

0.59		 PSA2-70

PSA2-75

PSA2-80

PSA2-85

PSA2-90
PSA2-95
[ DXF| DWG| 3D CAD]
PSA2-100
[ DXF| DWG| 3D CAD]		 2

2		 95

100		 15

15		 190

200		 194

204		 20

20		 20

20		 S5

S5		 3.289

3.482		 32.25

34.15		 0.220.38

0.220.38		 0.65

0.72		 PSA2-95

PSA2-100

CAUTION: Significant variations in temperature or humidity can cause dimensional changes in plastic gears (MC Nylon gears). Please see the section on plastic gears in the technical section for additional information.

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.

USEFUL HINT: Due to the large coefficient of heat expansion of nylon, if these gears are to be used without lubrication, we recommend that the mating gears be made of metal. These metal gears can absorb heat, thereby preventing temperature build-up and limiting premature failure.

 

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