Spur Gear Catalog
104 standard involute spur gears — 10 to 60 teeth in steps of 2, across four modules, all at a 20° pressure angle. Every gear has full engineering dimensions and free STL/DXF/SVG downloads.
Browse by module
Browse by tooth count
10 teeth
4 modules
12 teeth
4 modules
14 teeth
4 modules
16 teeth
4 modules
18 teeth
4 modules
20 teeth
4 modules
22 teeth
4 modules
24 teeth
4 modules
26 teeth
4 modules
28 teeth
4 modules
30 teeth
4 modules
32 teeth
4 modules
34 teeth
4 modules
36 teeth
4 modules
38 teeth
4 modules
40 teeth
4 modules
42 teeth
4 modules
44 teeth
4 modules
46 teeth
4 modules
48 teeth
4 modules
50 teeth
4 modules
52 teeth
4 modules
54 teeth
4 modules
56 teeth
4 modules
58 teeth
4 modules
60 teeth
4 modules
Guides
Read all guides → — gear module, involute geometry, pressure angle, ratios, backlash, materials, and manufacturing (3D printing, laser cutting, CNC).