Sample · module 2 · 20° · herringbone 25°

20T in an 80T herringbone ring

A herringbone ring gear and pinion: no axial thrust, 4 : 1.

Rings & racks20 in 80

Build it with your AI

Using the CheapCAD Tools connector, design a pinion and ring gear drive in Gear Designer: module 2 mm, herringbone, helix angle 25°, face width 16 mm. Gear 1: 20 teeth, a 10 mm bore. Gear 2: 80 teeth, an internal (ring) gear, profile shift x = -0.1, rim outside diameter 192 mm. Check the design, apply any Auto-fix it suggests, then export both gears as STL and give me the download link.

Paste it into Claude, ChatGPT or any AI app with the CheapCAD Tools connector, and it designs this gear set with you, checks it and hands you the files. How to connect your AI.

What's in this design

Gear 1 · 20 teeth

20T gear · tip Ø48.1 mm · bore Ø10 mm

Ring gear · 80 teeth

80T ring gear · rim Ø192 mm · x = -0.1

The mesh · module 2 · 20° · herringbone 25°

ratio 4 : 1 · centre distance 66.4 mm · contact ratio 1.58 + overlap 1.08 · backlash 0.164–0.308 mm

The link opens both parts in the Gear Designer's 3D Mode. Change the teeth, module or pitch, bore, hub or spokes, then download STL, STEP, DXF or SVG.

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