Every LEGO Technic gear as one part: pick the tooth count and the cut. All of them turn on the same Ø4.8 mm cross axle, so swapping one for another changes the ratio without moving the axle it sits on — a spur gear to mesh flat, a bevel or double bevel to turn a corner, a crown to drive a spur gear at a right angle, and the 16-tooth clutch to slip instead of stall.

Made by

LEGO

SKU

4019

Kind

3D model

Licence

LicenseRef-LEGO-CAD

Keywords

gear, lego, technic, bevel, double bevel, crown, clutch, spur, SKU, part number