42-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 42-tooth module 0.5 involute spur gear, blueprint style, on white background
Teeth42
Module0.5 mm
Pressure angle20°
Pitch diameter21 mm
Outside diameter22 mm
Root diameter19.75 mm
Base diameter19.73 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)5.25 mm
Face width (default)3 mm
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Technical diagram of the 42-tooth module 0.5 gear tooth profile

Meshing

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40T · m0.5
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44T · m0.5
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42T · m0.3
Same 42 teeth, module 0.3
42T · m1
Same 42 teeth, module 1
42T · m2
Same 42 teeth, module 2

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