Rack and Pinion
Rack and pinion is a type of linear actuator that converts rotational motion into linear motion. The rack is a flat, toothed bar that can move in a straight line, while the pinion is a gear that meshes with the rack, causing it to move when the pinion rotates. This mechanism is commonly used in steering systems in vehicles to convert the rotational motion of the steering wheel into the linear motion needed to turn the wheels.