28-Tooth Module 0.5 Spur Gear

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

3D render of a 28-tooth module 0.5 involute spur gear, blueprint style, on white background
Teeth28
Module0.5 mm
Pressure angle20°
Pitch diameter14 mm
Outside diameter15 mm
Root diameter12.75 mm
Base diameter13.16 mm
Circular pitch1.57 mm
Addendum0.5 mm
Dedendum0.63 mm
Whole depth1.13 mm
Tooth thickness (at pitch circle)0.79 mm
Bore diameter (default)3.5 mm
Face width (default)3 mm
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Technical diagram of the 28-tooth module 0.5 gear tooth profile

Meshing

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28T · m1
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28T · m2
Same 28 teeth, module 2

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