38-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 38-tooth module 2 involute spur gear, blueprint style, on white background
Teeth38
Module2 mm
Pressure angle20°
Pitch diameter76 mm
Outside diameter80 mm
Root diameter71 mm
Base diameter71.42 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)19 mm
Face width (default)12 mm
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Technical diagram of the 38-tooth module 2 gear tooth profile

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36T · m2
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40T · m2
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38T · m0.3
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38T · m0.5
Same 38 teeth, module 0.5
38T · m1
Same 38 teeth, module 1

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