sprocket

ratas, ketjuhammaspyörä

hammasrulla, tela

hammas A toothed wheel that enmeshes with a chain or other perforated band.
puhekieltä The tooth of such a wheel.
puhekieltä A flared extension at the base of a sloped roof.
(n-g) for an unnamed, unspecified, or hypothetical manufactured good or product.|lang=en

Suppose we have a widget factory that produces 100 widgets per year, and a sprocket factory that produces 200 sprockets per year.