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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 (kgf  m) |
Allowable torque (N m) |
Backlash (mm) |
Weight (kgf) |
Catalog No. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| m | z | AH7 | B | C | D | E | F | G | Bending strength |
Surface durability |
Bending strength |
Surface durability | ||||||
|
SN1-13R [ DXF|DWG | 3D CAD] SN1-13L [ DXF|DWG | 3D CAD] |
R L |
1 | 13 | 6 | 15 | 18.38 | 20.38 | 10 | 10 | 20 | S1 | - | 0.02 | - | 0.19 | 0.08 0.18 |
0.03 | SN1-13R SN1-13L |
|
SN1-15R [ DXF|DWG | 3D CAD] SN1-15L [ 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 | SN1-15R SN1-15L |
|
SN1-20R [ DXF|DWG | 3D CAD] SN1-20L [ DXF|DWG | 3D CAD] |
R L |
1 | 20 | 8 | 25 | 28.28 | 30.28 | 10 | 10 | 20 | S1 | - | 0.07 | - | 0.66 | 0.080.18 |
0.08 | SN1-20R SN1-20L |
|
SN1-26R
[ DXF|DWG | 3D CAD] SN1-26L [ DXF|DWG | 3D CAD] |
R L |
1 | 26 | 10 | 30 | 36.77 | 38.77 | 10 | 10 | 20 | S1 | - | 0.14 | - | 1.42 | 0.120.22 |
0.13 | SN1-26R SN1-26L |
|
SN1-30R [ DXF|DWG | 3D CAD] SN1-30L [ DXF|DWG | 3D CAD] |
R L |
1 | 30 | 10 | 35 | 42.43 | 44.43 | 10 | 10 | 20 | S1 | - | 0.22 | - | 2.14 | 0.120.22 |
0.17 | SN1-30R SN1-30L |
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 (kgf m) |
Allowable torque (N m) |
Backlash (mm) |
Weight (kgf) |
Catalog No. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| m | z | AH7 | B | C | D | E | F | G | Bending strength |
Surface durability |
Bending strength |
Surface durability | ||||||
|
SN1.5-10R [ DXF|DWG | 3D CAD] SN1.5-10L [ 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 | SN1.5-10R SN1.5-10L |
|
SN1.5-13R [ DXF|DWG | 3D CAD] SN1.5-13L [ DXF|DWG | 3D CAD] |
R L |
1.5 | 13 | 10 | 23 | 27.58 | 30.58 | 15 | 10 | 25 | S1 | - | 0.06 | - | 0.62 | 0.120.22 |
0.08 | SN1.5-13R SN1.5-13L |
|
SN1.5-15R [ DXF|DWG | 3D CAD] SN1.5-15L [ 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 | SN1.5-15R SN1.5-15L |
|
SN1.5-20R [ DXF|DWG | 3D CAD] SN1.5-20L [ DXF|DWG | 3D CAD] |
R L |
1.5 | 20 | 12 | 30 | 42.43 | 45.43 | 15 | 10 | 25 | S1 | - | 0.22 | - | 2.14 | 0.120.22 |
0.21 | SN1.5-20R SN1.5-20L |
|
SN1.5-26R [ DXF|DWG | 3D CAD] SN1.5-26L [ DXF|DWG | 3D CAD] |
R L |
1.5 | 26 | 12 | 40 | 55.15 | 58.15 | 15 | 10 | 25 | S1 | - | 0.46 | - | 4.51 | 0.140.26 |
0.36 | SN1.5-26R SN1.5-26L |
|
SN1.5-30R [ DXF|DWG | 3D CAD] SN1.5-30L [ DXF|DWG | 3D CAD] |
R L |
1.5 | 30 | 12 | 45 | 63.64 | 66.64 | 15 | 10 | 25 | S1 | - | 0.69 | - | 6.75 | 0.140.26 |
0.48 | SN1.5-30R SN1.5-30L |
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 (kgf m) |
Allowable torque (N m) |
Backlash (mm) |
Weight (kgf) |
Catalog No. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| m | z | AH7 | B | C | D | E | F | G | Bending strength |
Surface durability |
Bending strength |
Surface durability | ||||||
|
SN2-10R [ DXF|DWG | 3D CAD] SN2-10L [ 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 | SN2-10R SN2-10L |
|
SN2-13R [ DXF|DWG | 3D CAD] SN2-13L [ DXF|DWG | 3D CAD] |
R L |
2 | 13 | 12 | 30 | 36.77 | 40.77 | 20 | 15 | 35 | S1 | - | 0.14 | - | 1.42 | 0.120.22 |
0.21 | SN2-13R SN2-13L |
|
SN2-15R [ DXF|DWG | 3D CAD] SN2-15L [ DXF|DWG | 3D CAD] |
R L |
2 | 15 | 12 | 35 | 42.43 | 46.43 | 20 | 15 | 35 | S1 | - | 0.22 | - | 2.14 | 0.120.22 |
0.31 | SN2-15R SN2-15L |
|
SN2-20R [ DXF|DWG | 3D CAD] SN2-20L [ DXF|DWG | 3D CAD] |
R L |
2 | 20 | 15 | 45 | 56.57 | 60.57 | 20 | 15 | 35 | S1 | - | 0.49 | - | 4.84 | 0.120.22 |
0.52 | SN2-20R SN2-20L |
|
SN2-26R [ DXF|DWG | 3D CAD] SN2-26L [ DXF|DWG | 3D CAD] |
R L |
2 | 26 | 20 | 60 | 73.54 | 77.54 | 20 | 15 | 35 | S1 | - | 1.03 | - | 10.12 | 0.140.3 |
0.9 | SN2-26R SN2-26L |
|
SN2-30R [ DXF|DWG | 3D CAD] SN2-30L [ DXF|DWG | 3D CAD] |
R L |
2 | 30 | 20 | 65 | 84.85 | 88.85 | 20 | 15 | 35 | S1 | - | 1.53 | - | 15.04 | 0.140.3 |
1.2 | SN2-30R SN2-30L |
|
|
| 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. |
|---|---|
| CAUTION: | The maximum allowable sliding speed of SN gears due to heat is 2.5 m/s. |
| 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. |
| USEFUL HINT: | In order to increase the wear resistance of SN
screw gears made of S45C, KHK can induction harden the teeth to HRC4853 at additional cost. |
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