A rack and pinion system can be used to transform rotary motion into linear movement and vice versa. A circular spur equipment, the pinion, meshes with a spur equipment which has teeth set in 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 tyre rotates a equipment which engages the rack. As the gear turns, it slides the rack either to the right or left, depending on which way you switch the wheel.
A rack and pinion system gives the ability to transfer rotary to linear movement, with all the precision expected of a geared system.

The racks are manufactured from ground, hardened stainless or ground stainless and available with a choice of accuracies, pitches, and lengths, in addition to the facility to provide 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 components and coatings.

Floor rack can be used for both measurement and actuation. Generally small pitches (1 mm) fit measurement as small pinion diameter provides 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 feedback, alternatively another rack can be used. Hobbed rack are more suitable for light actuation applications where price is an integral consideration.

We offer three types of rack – rectangular, solid circular and tubular rack. Rectangular rack are used when the application needs the rack to become stationary and the rack pinion supplies the element of movement. Our rectangular racks are used in combination with a electric motor, slide and carriage for example in the printing market for the actuation of paper slicing knives in a printing press. Circular rack certainly are a more flexible alternative, with regard to mounting, utilized for instance in XY phases. The tubular racks enable the passage of liquids, fibre-optics, gasses etc, Spur Gear Rack 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 especially useful for medical and scientific applications, where in fact the hollow shaft allows for the passage of fluids, fibre optics and gases.