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FreeGLBSTL

Spur gear, 20 teeth, module 2

3D model of a straight spur gear, 20 teeth, module 2, 8 mm thick, 6 mm shaft bore. STL for 3D printing and GLB for web viewing, free download.

Downloadable files

  • banh-rang-tru-20-rang-m2.stl
    STL — in 3D (mm) · 131 KB    Download
  • banh-rang-tru-20-rang-m2.glb
    GLB — 3D viewing, import into Blender / web · 57 KB    Download

License CC BY 4.0 — free to use, credit “OctaX.vn”. Demo the production version requires a free account to download.

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Specifications

  • Number of teeth z = 20, module m = 2 → pitch diameter 40 mm, tip diameter 44 mm.
  • 8 mm thick, Ø6 mm shaft bore.

Center distance when meshing with a gear z₂ of the same module: a = m × (z₁ + z₂) ÷ 2. Example meshing with a 40-tooth gear: a = 2 × (20 + 40) ÷ 2 = 60 mm.

Approximate trapezoidal tooth profile, suitable for models, toys and light-duty mechanisms. Heavy-duty power transmission requires a standard involute profile.

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