Translations:FCGear InvoluteRack/4/en

Gear racks are used to convert a rotary motion into a linear motion or vice versa. The following examples show the different applications:
 * A rack with gear on at a retaining weir.
 * Various rack systems of rack-and-pinion railways.
 * Rack and pinion steering in a vehicle.
 * Rack and pinion winch as mechanical hoist (e.g. car jack).
 * Pneumatic rack and pinion drives used to control valves in pipeline transport.