Sample · module 2.5 · 20° · helical 15°

24T : 48T · helical on ISO 4156 splines

A 2 : 1 helical pair on involute (ISO 4156) splines, retaining rings over splined washers.

Industrial24 : 48Shaft included

Build it with your AI

Using the CheapCAD Tools connector, design a two-gear drive in Gear Designer: module 2.5 mm, helical, helix angle 15°, face width 20 mm. Gear 1: 24 teeth, an ISO 4156 involute spline bore, module 1 mm, 20 teeth, a retaining ring on the top face, a splined washer under each ring. Gear 2: 48 teeth, an ISO 4156 involute spline bore, module 1.25 mm, 24 teeth, a retaining ring on the top face, a splined washer under each ring. 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 · 24 teeth

24T gear · tip Ø67.1 mm · ISO 4156 spline m1 × 20T, retaining ring on the top face over splined washers

Gear 2 · 48 teeth

48T gear · tip Ø129.2 mm · ISO 4156 spline m1.25 × 24T, retaining ring on the top face over splined washers

The mesh · module 2.5 · 20° · helical 15°

ratio 2 : 1 · centre distance 93.17 mm · contact ratio 1.6 + overlap 0.66 · backlash 0.145–0.269 mm

The link opens both parts in the Gear Designer's 3D Mode, with the sample shafts and their retaining rings, which download with the set. Change the teeth, module or pitch, bore, hub or spokes, then download STL, STEP, DXF or SVG.

More samples