A rack and pinion mechanism is utilized to transform rotary motion into linear movement and vice versa. A round spur equipment, the pinion, meshes with a spur equipment which has teeth occur a straight collection, the rack. Rack and pinion gears are accustomed to convert rotation into linear movement. A perfect example of this is actually the steering program on many cars. The steering wheel rotates a gear which engages the rack. As the apparatus turns, it slides the rack either to the right or left, based on which way you turn the wheel.
A rack and pinion system gives the ability to transfer rotary to linear motion, with all the accuracy expected of a geared system.
The racks are produced from ground, hardened stainless steel or ground stainless steel and available with a selection of accuracies, pitches, and Spur Gear Rack lengths, in addition to the facility to supply modifications such as flats, journals or custom ends. Hobbed stainless steel and brass racks are also available. The rack pinions are plain or anti-backlash, also with a choice of accuracies, pitches, bore sizes, alternative components and coatings.
Floor rack can be utilized for both measurement and actuation. Generally the smaller pitches (1 mm) fit measurement as the smaller pinion diameter gives higher linear resolutions. The bigger pitches (2 mm and 2.5 mm) allow for an increased load capacity. For most applications the rack can be utilized for both the feedback and the actuation; yet, in very specific applications it is advisable to us a non-drive portion of the rack for opinions, alternatively a separate rack may be used. Hobbed rack are more suited to light actuation applications where cost is a key consideration.
We offer three types of rack – rectangular, solid round and tubular rack. Rectangular rack are used when the application needs the rack to be stationary and the rack pinion provides the element of motion. Our rectangular racks are used with a engine, slide and carriage for example in the printing sector for the actuation of paper 
trimming knives in a printing press. Circular rack certainly are a more versatile alternative, with regard to mounting, utilized for instance in XY phases. The tubular racks enable the passage of liquids, fibre-optics, gasses etc, making them perfect for medical and scientific applications, such as laboratory automation choose 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 the hollow shaft allows for the passage of fluids, fibre optics and gases.