12-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 12-tooth module 1 involute spur gear, blueprint style, on white background
Teeth12
Module1 mm
Pressure angle20°
Pitch diameter12 mm
Outside diameter14 mm
Root diameter9.5 mm
Base diameter11.28 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)3 mm
Face width (default)6 mm
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Technical diagram of the 12-tooth module 1 gear tooth profile

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Related gears

10T · m1
Fewer teeth, same module
14T · m1
More teeth, same module
12T · m0.3
Same 12 teeth, module 0.3
12T · m0.5
Same 12 teeth, module 0.5
12T · m2
Same 12 teeth, module 2

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