42-Tooth Module 2 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 2 involute spur gear, blueprint style, on white background
Teeth42
Module2 mm
Pressure angle20°
Pitch diameter84 mm
Outside diameter88 mm
Root diameter79 mm
Base diameter78.93 mm
Circular pitch6.28 mm
Addendum2 mm
Dedendum2.5 mm
Whole depth4.5 mm
Tooth thickness (at pitch circle)3.14 mm
Bore diameter (default)21 mm
Face width (default)12 mm
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Technical diagram of the 42-tooth module 2 gear tooth profile

Meshing

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40T · m2
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44T · m2
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42T · m0.3
Same 42 teeth, module 0.3
42T · m0.5
Same 42 teeth, module 0.5
42T · m1
Same 42 teeth, module 1

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