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 B 1704 grade 3 Core hardness Less than HB187
Gear teeth Gleason Surface hardness
Pressure angle 20 Surface treatment -
Material SUS303 (Stainless steel) Surface finish Cut
Heat treatment - Datum reference surface
for gear cutting		 Bore

B3
B4

Gear Ratio 1.5
 Module 1.53
Catalog No. Module No. of
teeth		 Bore Hub dia. Pitch dia. Outside dia. Mounting
distance		 Total length Crown to
back length		 Hub width Length
of bore		 Face width Holding
surface dia.		 Face angle Shape Allowable
torque (kgfm)		 Allowable
torque (Nm)		 Backlash
(mm)		 Weight
(kgf)		 Catalog No.
m z AH7 B C D E F G H I J K L Bending
strength		 Surface
durability		 Bending
strength		 Surface
durability
SUB1.5-3020
[ DXF| DWG | 3D CAD]
SUB1.5-2030
[ DXF| DWG | 3D CAD]		 1.5 30

20

 10

8

 30

25

 45

30

 46.24

33.13

 28

33

 18.53

18.63

 13.93

11.54

 8

8.83

 16

17

 9

 27.37

17.05

 5916'

3816'

 B4

B3

 0.3278

0.2275

 0.0474

0.0316

 3.215

2.231

 0.4648

0.3099

 0.050.15

 0.12

0.06

 SUB1.5-3020

SUB1.5-2030

SUB2-3020
[ DXF| DWG | 3D CAD]
SUB2-2030
[ DXF| DWG | 3D CAD]		 2 30

20

 10

10

 35

35

 60

40

 61.65

44.18

 40

45

 26.87

25.06

 21.24

16.39

 15

13.33

 23

22

 11

 37.56

21.34

 5916'

3816'

 B4

B3

 0.7362

0.5109

 0.1102

0.0735

 7.22

5.01

 1.081

0.7208

 0.060.16

 0.26

0.16

 SUB2-3020

SUB2-2030

SUB2.5-3020
[ DXF| DWG | 3D CAD]
SUB2.5-2030
[ DXF| DWG | 3D CAD]		 2.5 30

20

 15

12

 45

40

 75

50

 77.07

55.22

 50

55

 34.22

31.06

 26.55

19.24

 18

14.16

 30

28

 15

 45.61

27.42

 5916'

3816'

 B4

B3

 1.518

1.053

 0.2322

0.1548

 14.89

10.33

 2.277

1.518

 0.070.17

 0.55

0.28

 SUB2.5-3020

SUB2.5-2030

SUB3-3020
[ DXF| DWG | 3D CAD]
SUB3-2030
[ DXF| DWG | 3D CAD]		 3 30

20

 15

15

 60

50

 90

60

 92.48

66.27

 55

70

 35.56

40.48

 26.86

27.09

 17

21.66

 31

37

 17

 57.14

34.71

 5916'

3816'

 B4

B3

 2.532

1.757

 0.3948

0.2632

 24.83

17.23

 3.872

2.581

 0.080.18

 0.95

0.55

 SUB3-3020

SUB3-2030

Pitch Angle Gear 5619' Pinion 3341'

Gear Ratio 2
 Module 1.53
Catalog No. Module No. of
teeth		 Bore Hub dia. Pitch dia. Outside dia. Mounting
distance		 Total length Crown to
back length		 Hub width Length
of bore		 Face width Holding
surface dia.		 Face angle Shape Allowable
torque (kgfm)		 Allowable
torque (Nm)		 Backlash
(mm)		 Weight
(kgf)		 Catalog No.
m z AH7 B C D E F G H I J K L Bending
strength		 Surface
durability		 Bending
strength		 Surface
durability
SUB1.5-4020
[ DXF| DWG | 3D CAD]
SUB1.5-2040
[ DXF| DWG | 3D CAD]		 1.5 40

20

 10

8

 38

25

 60

30

 60.88

33.61

 35

46

 25.01

25.54

 20.88

16.9

 15

14.75

 22

24

 10

 39.64

17.28

 6536'

3029'

 B4

B3

 0.5335

0.2687

 0.0805

0.0403

 5.232

2.635

 0.7894

0.3952

 0.050.15

 0.27

0.09

 SUB1.5-4020

SUB1.5-2040

SUB2-4020
[ DXF| DWG | 3D CAD]
SUB2-2040
[ DXF| DWG | 3D CAD]		 2 40

20

 12

12

 50

32

 80

40

 81.17

44.81

 45

60

 32.37

34.16

 26.17

21.2

 18

18

 27

32

 15

 48.46

20.92

 6536'

3029'

 B4

B3

 1.361

0.6854

 0.2115

0.1057

 13.35

6.721

 2.074

1.037

 0.060.16

 0.62

0.2

 SUB2-4020

SUB2-2040

SUB2.5-4020
[ DXF| DWG | 3D CAD]
SUB2.5-2040
[ DXF| DWG | 3D CAD]		 2.5 40

20

 15

12

 60

40

 100

50

 101.46

56.02

 55

75

 39.73

43.78

 31.46

26.5

 20

22.5

 35

41

 20

 60.28

24.56

 6536'

3029'

 B4

B3

 2.76

1.39

 0.4377

0.2189

 27.07

13.63

 4.292

2.147

 0.070.17

 1.23

0.4

 SUB2.5-4020

SUB2.5-2040

SUB3-4020
[ DXF| DWG | 3D CAD]
SUB3-2040
[ DXF| DWG | 3D CAD]		 3 40

20

 20

16

 70

50

 120

60

 121.76

67.22

 65

90

 45.85

50.81

 36.76

31.8

 24

27.5

 38

47

 22

 73.81

29.61

 6536'

3029'

 B4

B3

 4.532

2.282

 0.7333

0.3666

 44.44

22.38

 7.191

3.595

 0.080.18

 1.9

0.7

 SUB3-4020

SUB3-2040

Pitch Angle Gear 6326' Pinion 2634'

Gear Ratio 3
 Module 1.53
Catalog No. Module No. of
teeth		 Bore Hub dia. Pitch dia. Outside dia. Mounting
distance		 Total length Crown to
back length		 Hub width Length
of bore		 Face width Holding
surface dia.		 Face angle Shape Allowable
torque (kgfm)		 Allowable
torque (Nm)		 Backlash
(mm)		 Weight
(kgf)		 Catalog No.
m z AH7 B C D E F G H I J K L Bending
strength		 Surface
durability		 Bending
strength		 Surface
durability
SUB1.5-4515
[ DXF| DWG | 3D CAD]
SUB1.5-1545
[ DXF| DWG | 3D CAD]		 1.5 45

15

 10

8

 36

18

 67.5

22.5

 68.06

26.51

 28

47

 20.44

23.19

 17.59

13.92

 11

12.5

 17

22.5

 10

 46.58

14.75

 7327'

2217'

 B4

B3

 0.5809

0.2005

 0.736

0.0245

 5.697

1.966

 0.7218

0.2403

 0.050.15

 0.25

0.04

 SUB1.5-4515

SUB1.5-1545

SUB2-4515
[ DXF| DWG | 3D CAD]
SUB2-1545
[ DXF| DWG | 3D CAD]		 2 45

15

 12

10

 60

24

 90

30

 90.75

35.35

 40

60

 30.4

29.8

 26.12

15.89

 17

14

 26

29

 15

 59.04

19.13

 7327'

2217'

 B4

B3

 1.486

0.5131

 0.1938

0.0646

 14.57

5.032

 1.901

0.6335

 0.060.16

 0.81

0.1

 SUB2-4515

SUB2-1545

SUB2.5-4515
[ DXF| DWG | 3D CAD]
SUB2.5-1545
[ DXF| DWG | 3D CAD]		 2.5 45

15

 15

12

 60

30

 112.5

37.5

 113.43

44.18

 50

75

 38.35

38.41

 32.65

19.86

 22

17.5

 35

37

 20

 72.84

20.51

 7327'

2217'

 B4

B3

 3.019

1.042

 0.402

0.134

 29.61

10.22

 3.942

1.314

 0.070.17

 1.3

0.2

 SUB2.5-4515

SUB2.5-1545

SUB3-4515
[ DXF| DWG | 3D CAD]
SUB3-1545
[ DXF| DWG | 3D CAD]		 3 45

15

 20

15

 80

38

 135

45

 136.12

53.02

 55

90

 40.74

45.17

 34.18

23.84

 20

21.33

 35

43

 23

 88.18

22.53

 7327'

2217'

 B4

B3

 5.085

1.755

 0.6901

0.23

 49.87

17.21

 6.768

2.256

 0.080.18

 2.3

0.35

 SUB3-4515

SUB3-1545

Pitch Angle Gear 7134' Pinion 1826'
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
NOTE: The allowable torques shown in the table are calculated according to JGMA Standards 403-01 and 404-01.
USEFUL HINT: Stainless steel may be categorized into four types as martensite, ferrite, austenite and precipitate hardened. SUS303 and 304 belong to austenite family and cannot be hardened. To harden stainless steel, there are martensite series, such as SUS420J.

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