Technical reference · Doc no. GEAR-01 · Rev. A meshing gears

The gear train.

Two meshing gears trade speed for the same force. The smaller driven gear turns faster than the larger driver — by exactly the ratio of their tooth counts. Drag either gear to feel the coupling; the readout shows the live ratio.

Method: figure/ground separation · Not to scale

Driver 18t Driven 12t
ratio 1.50 : 1

The driven gear completes 1.5 turns for every turn of the driver.

FIG. 1 Meshing gears. Two coupled gears trade angular speed for the same force; the driven gear turns faster than the driver by the ratio of their tooth counts. Drag either gear to scrub the coupling, or press play to run.