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Spur gears, module 2: 10 to 80 teeth (20° involute)

What is the pitch diameter of a module 2 spur gear? · Hardware · basis: ISO 53 basic rack: 20° pressure angle, addendum m, dedendum 1.25 m; pitch Ø = m × teeth, tip Ø = m × (teeth + 2), root Ø = m × (teeth − 2.5)

Exact dimensions. True size, with no printing tolerance added.

sizes
26 in table

Notes

  • Centre distance of two module 2 gears = m × (N1 + N2) / 2. Face width 16 mm, plain bore (add a hub, key or set screw to suit). Teeth below 17 are drawn without profile shift, so they undercut as real unshifted gears do.

Sizes

teethpitch_dia_mmtip_dia_mmroot_dia_mmface_mmbore_mm
1020.024.015.016.05
1224.028.019.016.07
1428.032.023.016.08
1530.034.025.016.09
1632.036.027.016.09
1836.040.031.016.011
2040.044.035.016.012
2244.048.039.016.014
2448.052.043.016.015
2550.054.045.016.016
2856.060.051.016.018
3060.064.055.016.019
3264.068.059.016.021
3570.074.065.016.023
3672.076.067.016.023
4080.084.075.016.025
4284.088.079.016.025
4590.094.085.016.025
4896.0100.091.016.025
50100.0104.095.016.025
56112.0116.0107.016.025
60120.0124.0115.016.025
64128.0132.0123.016.025
70140.0144.0135.016.025
72144.0148.0139.016.025
80160.0164.0155.016.025

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

ISOISO 53 standard basic rack (20° pressure angle, addendum 1 m, dedendum 1.25 m) and ISO 54 modulesstandardISO; dimensions are facts verify

Free files

★ Free files 26 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

gear-m2-10tmodule 2, 10 teeth: pitch Ø20, tip Ø24, root Ø15, face 16, bore Ø5STEP · STL
gear-m2-12tmodule 2, 12 teeth: pitch Ø24, tip Ø28, root Ø19, face 16, bore Ø7STEP · STL
gear-m2-14tmodule 2, 14 teeth: pitch Ø28, tip Ø32, root Ø23, face 16, bore Ø8STEP · STL
gear-m2-15tmodule 2, 15 teeth: pitch Ø30, tip Ø34, root Ø25, face 16, bore Ø9STEP · STL
gear-m2-16tmodule 2, 16 teeth: pitch Ø32, tip Ø36, root Ø27, face 16, bore Ø9STEP · STL
gear-m2-18tmodule 2, 18 teeth: pitch Ø36, tip Ø40, root Ø31, face 16, bore Ø11STEP · STL
gear-m2-20tmodule 2, 20 teeth: pitch Ø40, tip Ø44, root Ø35, face 16, bore Ø12STEP · STL
gear-m2-22tmodule 2, 22 teeth: pitch Ø44, tip Ø48, root Ø39, face 16, bore Ø14STEP · STL
gear-m2-24tmodule 2, 24 teeth: pitch Ø48, tip Ø52, root Ø43, face 16, bore Ø15STEP · STL
gear-m2-25tmodule 2, 25 teeth: pitch Ø50, tip Ø54, root Ø45, face 16, bore Ø16STEP · STL
gear-m2-28tmodule 2, 28 teeth: pitch Ø56, tip Ø60, root Ø51, face 16, bore Ø18STEP · STL
gear-m2-30tmodule 2, 30 teeth: pitch Ø60, tip Ø64, root Ø55, face 16, bore Ø19STEP · STL
gear-m2-32tmodule 2, 32 teeth: pitch Ø64, tip Ø68, root Ø59, face 16, bore Ø21STEP · STL
gear-m2-35tmodule 2, 35 teeth: pitch Ø70, tip Ø74, root Ø65, face 16, bore Ø23STEP · STL
gear-m2-36tmodule 2, 36 teeth: pitch Ø72, tip Ø76, root Ø67, face 16, bore Ø23STEP · STL
gear-m2-40tmodule 2, 40 teeth: pitch Ø80, tip Ø84, root Ø75, face 16, bore Ø25STEP · STL
gear-m2-42tmodule 2, 42 teeth: pitch Ø84, tip Ø88, root Ø79, face 16, bore Ø25STEP · STL
gear-m2-45tmodule 2, 45 teeth: pitch Ø90, tip Ø94, root Ø85, face 16, bore Ø25STEP · STL
gear-m2-48tmodule 2, 48 teeth: pitch Ø96, tip Ø100, root Ø91, face 16, bore Ø25STEP · STL
gear-m2-50tmodule 2, 50 teeth: pitch Ø100, tip Ø104, root Ø95, face 16, bore Ø25STEP · STL
gear-m2-56tmodule 2, 56 teeth: pitch Ø112, tip Ø116, root Ø107, face 16, bore Ø25STEP · STL
gear-m2-60tmodule 2, 60 teeth: pitch Ø120, tip Ø124, root Ø115, face 16, bore Ø25STEP · STL
gear-m2-64tmodule 2, 64 teeth: pitch Ø128, tip Ø132, root Ø123, face 16, bore Ø25STEP · STL
gear-m2-70tmodule 2, 70 teeth: pitch Ø140, tip Ø144, root Ø135, face 16, bore Ø25STEP · STL
gear-m2-72tmodule 2, 72 teeth: pitch Ø144, tip Ø148, root Ø139, face 16, bore Ø25STEP · STL
gear-m2-80tmodule 2, 80 teeth: pitch Ø160, tip Ø164, root Ø155, face 16, bore Ø25STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=spur-gears-module-2

Spur gears, module 2: 10 to 80 teeth (20° involute), isometric render of a generated part
Render of gear-m2-35t from the free STEP; not to scale.

Fits with

Spur gears, module 0.5: 10 to 80 teeth (20° involute), isometric render of a generated part
Spur gears, module 0.5: 10 to 80 teeth (20° involute)26 sizes★ 26 files
Spur gears, module 0.8: 10 to 80 teeth (20° involute), isometric render of a generated part
Spur gears, module 0.8: 10 to 80 teeth (20° involute)26 sizes★ 26 files
Spur gears, module 1: 10 to 80 teeth (20° involute), isometric render of a generated part
Spur gears, module 1: 10 to 80 teeth (20° involute)26 sizes★ 26 files
Spur gears, module 1.25: 10 to 80 teeth (20° involute), isometric render of a generated part
Spur gears, module 1.25: 10 to 80 teeth (20° involute)26 sizes★ 26 files
Spur gears, module 1.5: 10 to 80 teeth (20° involute), isometric render of a generated part
Spur gears, module 1.5: 10 to 80 teeth (20° involute)26 sizes★ 26 files
Spur gears, involute 20°: module 0.5, 1 and 2, 12–60 teeth, isometric render of a generated part
Spur gears, involute 20°: module 0.5, 1 and 2, 12–60 teeth21 sizes★ 21 files

Questions

Pitch diameter of a module 2, 20-tooth gear?

40 mm; tip 44 mm.

Centre distance?

m × (N1 + N2) / 2: a 20 and a 40 tooth module 2 pair sit 60 mm apart.