Definition, Meaning & Synonyms

rack-and-pinion

Noun

/ˈræk ənd ˈpɪn jən/

Definition

A type of mechanical system used to convert rotational motion into linear motion.

Examples

The steering system of many cars uses a rack-and-pinion setup for precise control.
A roller coaster often utilizes a rack-and-pinion mechanism to lift the cars up its initial incline.

Meaning

Rack-and-pinion mechanisms consist of a round gear (the pinion) that engages teeth on a flat bar (the rack) to transform the turning motion into a sliding motion.