18-Tooth Module 1 Spur Gear
Standard 20° pressure-angle involute spur gear — free engineering reference, STL/DXF/SVG downloads, and a live customizer.
| Teeth | 18 |
|---|---|
| Module | 1 mm |
| Pressure angle | 20° |
| Pitch diameter | 18 mm |
| Outside diameter | 20 mm |
| Root diameter | 15.5 mm |
| Base diameter | 16.91 mm |
| Circular pitch | 3.14 mm |
| Addendum | 1 mm |
| Dedendum | 1.25 mm |
| Whole depth | 2.25 mm |
| Tooth thickness (at pitch circle) | 1.57 mm |
| Bore diameter (default) | 4.5 mm |
| Face width (default) | 6 mm |
Meshing
- Meshes with a 16-tooth module 1 gear at a center distance of 17 mm.
- Meshes with a 20-tooth module 1 gear at a center distance of 19 mm.
Related gears
16T · m1
Fewer teeth, same module
20T · m1
More teeth, same module
18T · m0.3
Same 18 teeth, module 0.3
18T · m0.5
Same 18 teeth, module 0.5
18T · m2
Same 18 teeth, module 2