40-Tooth Module 0.5 Spur Gear
Standard 20° pressure-angle involute spur gear — free engineering reference, STL/DXF/SVG downloads, and a live customizer.
| Teeth | 40 |
|---|---|
| Module | 0.5 mm |
| Pressure angle | 20° |
| Pitch diameter | 20 mm |
| Outside diameter | 21 mm |
| Root diameter | 18.75 mm |
| Base diameter | 18.79 mm |
| Circular pitch | 1.57 mm |
| Addendum | 0.5 mm |
| Dedendum | 0.63 mm |
| Whole depth | 1.13 mm |
| Tooth thickness (at pitch circle) | 0.79 mm |
| Bore diameter (default) | 5 mm |
| Face width (default) | 3 mm |
Meshing
- Meshes with a 38-tooth module 0.5 gear at a center distance of 19.5 mm.
- Meshes with a 42-tooth module 0.5 gear at a center distance of 20.5 mm.
Related gears
38T · m0.5
Fewer teeth, same module
42T · m0.5
More teeth, same module
40T · m0.3
Same 40 teeth, module 0.3
40T · m1
Same 40 teeth, module 1
40T · m2
Same 40 teeth, module 2