A rack and pinion system can be used to transform rotary movement into linear motion and vice versa. A round spur gear, the pinion, meshes with a spur gear which has teeth occur a straight range, the rack. Rack and pinion gears are accustomed to convert rotation into linear motion. A perfect example of this is the steering system on many cars. The tyre rotates a equipment which engages the rack. As the gear turns, it slides the rack either to the right or left, based on which way you convert the wheel.
A rack and pinion system gives the ability to transfer rotary to linear motion, with all the precision expected of a geared system.
The racks are manufactured from ground, hardened stainless or ground stainless steel and available with a selection of accuracies, pitches, and lengths, in addition to the facility to supply modifications such as for example flats, journals or custom ends. Hobbed stainless and brass racks are also obtainable. The rack pinions are ordinary or anti-backlash, also with a choice of accuracies, pitches, bore sizes, alternative materials and coatings.
Floor rack can be used for both measurement and actuation. In general the smaller pitches (1 mm) fit measurement as the smaller pinion diameter provides higher linear resolutions. The larger pitches (2 mm and 2.5 mm) allow for a higher load capacity. For 
most applications the rack can be Spur Gear Rack utilized for both the feedback and the actuation; yet, in very exact applications it is advisable to us a non-drive section of the rack for opinions, alternatively a separate rack can be used. Hobbed rack are more suitable for light actuation applications where price is a key consideration.
We offer three types of rack – rectangular, solid round and tubular rack. Rectangular rack are utilized when the application needs the rack to be stationary and the rack pinion provides the element of motion. Our rectangular racks are used in combination with a electric motor, slide and carriage for instance in the printing market for the actuation of paper trimming knives in a printing press. Round rack are a more versatile alternative, in regards to to mounting, utilized for example in XY stages. The tubular racks allow for the passage of fluids, fibre-optics, gasses etc, making them well suited for medical and scientific applications, such as for example laboratory automation pick and place mechanisms.
Round racks are perfect for linear actuators in accurate automation applications . Tubular racks are specially useful for medical and scientific applications, where in fact the hollow shaft allows for the passage of fluids, fibre optics and gases.