A rack and pinion system can be used to transform rotary motion into linear motion and vice versa. A circular spur gear, 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 equipment which engages the rack. As the gear turns, it slides the rack either to the proper or left, based on which way you turn the wheel.
A rack and pinion system gives the capability to transfer rotary to linear motion, with all the accuracy expected of a geared system.
The racks are manufactured from ground, hardened stainless or ground stainless steel and available with a selection of Spur Gear Rack accuracies, pitches, and lengths, in addition to the facility to provide modifications such as flats, journals or custom ends. Hobbed stainless and brass racks are also obtainable. The rack pinions are basic or anti-backlash, also with a selection of accuracies, pitches, bore sizes, alternative components and coatings.
Ground rack can be utilized for both measurement and actuation. In general the smaller pitches (1 mm) fit measurement as small pinion diameter gives higher linear resolutions. The bigger pitches (2 mm and 2.5 mm) enable a higher load capacity. For some applications the rack can be used for both the opinions and the actuation; however in very exact applications it is best to us a non-drive section of the rack for feedback, alternatively a separate rack can be used. Hobbed rack are more suitable for light actuation applications where cost is 
an integral consideration.
We offer three types of rack – rectangular, solid round and tubular rack. Rectangular rack are utilized when the application needs the rack to end up being stationary and the rack pinion provides the element of movement. Our rectangular racks are used in combination with a electric motor, slide and carriage for example in the printing industry for the actuation of paper reducing knives in a printing press. Round 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 ideal 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 the hollow shaft allows for the passage of liquids, fibre optics and gases.