20-Tooth Module 1 Spur Gear

Standard 20° pressure-angle involute spur gear — free engineering reference, STL/DXF/SVG downloads, and a live customizer.

3D render of a 20-tooth module 1 involute spur gear, blueprint style, on white background
Teeth20
Module1 mm
Pressure angle20°
Pitch diameter20 mm
Outside diameter22 mm
Root diameter17.5 mm
Base diameter18.79 mm
Circular pitch3.14 mm
Addendum1 mm
Dedendum1.25 mm
Whole depth2.25 mm
Tooth thickness (at pitch circle)1.57 mm
Bore diameter (default)5 mm
Face width (default)6 mm
Customize this Gear →
Technical diagram of the 20-tooth module 1 gear tooth profile

Meshing

Related gears

18T · m1
Fewer teeth, same module
22T · m1
More teeth, same module
20T · m0.3
Same 20 teeth, module 0.3
20T · m0.5
Same 20 teeth, module 0.5
20T · m2
Same 20 teeth, module 2

Learn more

Applications