All generators › Gears and drives
Two gears that mesh, from the shaft spacing and the ratio you need.
Tell it how far apart your two shafts are and how many teeth each gear has, and it works out the tooth size so the pair meshes exactly. Both gears are shown meshed.
Everything runs in your browser: nothing is uploaded and there is no sign-up.

Spur, helical and herringbone gears with real involute teeth.

A casing with teeth inside, and the gear that runs in it.

Sun, planets, ring and carrier that fit your casing and ratio.

A gear set that comes off the bed already assembled.

A strain wave gear with a printed flexible cup.

A harmonic drive that uses a timing belt as the flexible part.

GT2, HTD, XL, MXL and T-series pulleys with any tooth count.

Roller bearings that print already assembled.