12-Tooth Module 0.3 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 0.3 involute spur gear, blueprint style, on white background
Teeth12
Module0.3 mm
Pressure angle20°
Pitch diameter3.6 mm
Outside diameter4.2 mm
Root diameter2.85 mm
Base diameter3.38 mm
Circular pitch0.94 mm
Addendum0.3 mm
Dedendum0.38 mm
Whole depth0.67 mm
Tooth thickness (at pitch circle)0.47 mm
Bore diameter (default)0.9 mm
Face width (default)3 mm
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Technical diagram of the 12-tooth module 0.3 gear tooth profile

Meshing

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10T · m0.3
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14T · m0.3
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12T · m0.5
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12T · m1
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12T · m2
Same 12 teeth, module 2

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