Parametric Involute Spur Gear Set

A real thing, made fresh for you when you order.

Product pictures are made from the 3D model, not photographed.

$21.99

Plus $7.95 flat shipping to US addresses.

Color: Gray

How many

Made to order. We print it in the USA after you buy, so print time comes before ship time.

Flat $7.95 shipping. Made in the USA. Broken or wrong? Send a photo within 30 days and we reprint it.

What it does

Smooth-meshing involute teeth so your gears run quiet and clean
Pairs cleanly with the matching rack for linear motion
Ready to drop into projects, robots, and small machines
Lets you build working gear trains without CAD work
3D-printed and made in the USA

Get working gears for your next build. This involute spur gear set gives you parts that mesh smoothly and transfer power the way real gears should. The tooth profile follows proper engineering rules, so the gears actually run instead of binding up.

You can use these in robotics projects, kinetic art, hand-cranked toys, and small mechanisms. The set includes the matching rack for turning rotation into straight-line motion. Drop them into your build and you have functional motion in minutes.

Made in the USA. A useful tool for makers, students, and anyone who wants to learn how gears work without sketching them from scratch.

1.3k downloads in the maker community. That is interest in the design on the site it came from, not our sales.

How big it is

Size: 170 × 170 × 8 mmabout the size of a water bottle
Made: In the USA, printed when you order

Sizes come from the real model file, not a guess.

What you get

One printed piece, in the color you pick.
Nothing else to buy. It works as it arrives.

What it is made of

PLA, printed in one solid color. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.