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 1702 grade 5 Material SUS303 (Stainless steel)
Reference
section of gear		 Normal plane Surface treatment -
Gear teeth Standard full depth Surface finish Cut
Normal pressure angle 20 Datum reference surface
for teeth cutting		 Bore
Helix angle 45


S1

Module 1

Catalog No. Spiral
hand		 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 AH7 B C D E F G Bending
strength		 Surface
durability		 Bending
strength		 Surface
durability
SUN1-13R
[ DXF|DWG| 3D CAD]
SUN1-13L
[ DXF|DWG| 3D CAD]
 R

L

 		1

 		13

 		6

 		15

 		18.38

 		20.38

 		10

 		10

 		20

 		S1

 		-

 		0.02

 		-

 		0.19

 		0.080.18

 		0.03

 		SUN1-13R

SUN1-13L

SUN1-15R
[ DXF|DWG| 3D CAD]
SUN1-15L
[ DXF|DWG| 3D CAD]
 R

L

 		1

 		15

 		6

 		18

 		21.21

 		23.21

 		10

 		10

 		20

 		S1

 		-

 		0.03

 		-

 		0.29

 		0.080.18

 		0.04

 		SUN1-15R

SUN1-15L

Module 1.5

Catalog No. Spiral
hand		 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 AH7 B C D E F G Bending
strength		 Surface
durability		 Bending
strength		 Surface
durability
SUN1.5-10R
[ DXF|DWG| 3D CAD]
SUN1.5-10L
[ DXF|DWG| 3D CAD]
 R

L

 		1.5

 		10

 		8

 		16

 		21.21

 		24.21

 		15

 		10

 		25

 		S1

 		-

 		0.03

 		-

 		0.29

 		0.10.2

 		0.05

 		SUN1.5-10R

SUN1.5-10L

SUN1.5-13R
[ DXF|DWG| 3D CAD]
SUN1.5-13L
[ DXF|DWG| 3D CAD]
 R

L

 		1.5

 		13

 		10

 		23

 		27.57

 		30.58

 		15

 		10

 		25

 		S1

 		-

 		0.06

 		-

 		0.62

 		0.120.22

 		0.09

 		SUN1.5-13R

SUN1.5-13L

SUN1.5-15R
[ DXF|DWG| 3D CAD]
SUN1.5-15L
[ DXF|DWG| 3D CAD]
 R

L

 		1.5

 		15

 		10

 		25

 		31.82

 		34.82

 		15

 		10

 		25

 		S1

 		-

 		0.1

 		-

 		0.93

 		0.120.22

 		0.12

 		SUN1.5-15R

SUN1.5-15L

Module 2

Catalog No. Spiral
hand		 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 AH7 B C D E F G Bending
strength		 Surface
durability		 Bending
strength		 Surface
durability
SUN2-10R
[ DXF|DWG| 3D CAD]
SUN2-10L
[ DXF|DWG| 3D CAD]
 R

L

 		2

 		10

 		12

 		22

 		28.28

 		32.28

 		20

 		15

 		35

 		S1

 		-

 		0.07

 		-

 		0.66

 		0.120.22

 		0.11

 		SUN2-10R

SUN2-10L

SUN2-13R
[ DXF|DWG| 3D CAD]
SUN2-13L
[ DXF|DWG| 3D CAD]
 R

L

 		2

 		13

 		12

 		30

 		36.77

 		40.77

 		20

 		15

 		35

 		S1

 		-

 		0.14

 		-

 		1.42

 		0.120.26

 		0.22

 		SUN2-13R

SUN2-13L

SUN2-15R
[ DXF|DWG| 3D CAD]
SUN2-15L
[ DXF|DWG| 3D CAD]
 R

L

 		2

 		15

 		12

 		35

 		42.43

 		46.43

 		20

 		15

 		35

 		S1

 		-

 		0.22

 		-

 		2.14

 		0.120.26

 		0.31

 		SUN2-15R

SUN2-15L

Module 2.5

Catalog No. Spiral
hand		 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 AH7 B C D E F G Bending
strength		 Surface
durability		 Bending
strength		 Surface
durability
SUN2.5-10R
[ DXF|DWG| 3D CAD]
SUN2.5-10L
[ DXF|DWG| 3D CAD]
 R

L

 		2.5

 		10

 		12

 		26

 		35.36

 		40.36

 		22

 		16

 		38

 		S1

 		-

 		0.13

 		-

 		1.26

 		0.120.24

 		0.2

 		SUN2.5-10R

SUN2.5-10L

SUN2.5-13R
[ DXF|DWG| 3D CAD]
SUN2.5-13L
[ DXF|DWG| 3D CAD]
 R

L

 		2.5

 		13

 		15

 		35

 		45.96

 		50.96

 		22

 		16

 		38

 		S1

 		-

 		0.27

 		-

 		2.69

 		0.140.28

 		0.36

 		SUN2.5-13R

SUN2.5-13L

SUN2.5-15R
[ DXF|DWG| 3D CAD]
SUN2.5-15L
[ DXF|DWG| 3D CAD]
 R

L

 		2.5

 		15

 		15

 		40

 		53.03

 		58.03

 		22

 		16

 		38

 		S1

 		-

 		0.41

 		-

 		4.03

 		0.140.28

 		0.49

 		SUN2.5-15R

SUN2.5-15L

Module 3

Catalog No. Spiral
hand		 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 AH7 B C D E F G Bending
strength		 Surface
durability		 Bending
strength		 Surface
durability
SUN3-10R
[ DXF|DWG| 3D CAD]
SUN3-10L
[ DXF|DWG| 3D CAD]
 R

L

 		3

 		10

 		15

 		34

 		42.43

 		48.43

 		25

 		18

 		43

 		S1

 		-

 		0.22

 		-

 		2.14

 		0.140.26

 		0.35

 		SUN3-10R

SUN3-10L

SUN3-13R
[ DXF|DWG| 3D CAD]
SUN3-13L
[ DXF|DWG| 3D CAD]
 R

L

 		3

 		13

 		20

 		45

 		55.15

 		61.15

 		25

 		18

 		43

 		S1

 		-

 		0.46

 		-

 		4.51

 		0.160.32

 		0.59

 		SUN3-13R

SUN3-13L

SUN3-15R
[ DXF|DWG| 3D CAD]
SUN3-15L
[ DXF|DWG| 3D CAD]
 R

L

 		3

 		15

 		20

 		50

 		63.64

 		69.64

 		25

 		18

 		43

 		S1

 		-

 		0.69

 		-

 		6.75

 		0.160.32

 		0.8

 		SUN3-15R

SUN3-15L
CAUTION: For offset shaft applications, RH and RH or LH and LH are meshed to make up a set of screw gears or crossed-helical gears. For parallel shaft applications, mesh opposite hands for helical gear sets. See the "Selection Hints" in this catalog.
NOTE: The allowable torques shown in the table are calculated from the Niemann formula. Please see the "Selection Hints" for further detail.
NOTE: The backlash values shown in the table are the theoretical values in the normal direction of a pair of identical gears in mesh.

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