spur gear rack

A rack and pinion system is utilized to transform rotary motion into linear motion and vice versa. A round spur gear, the pinion, meshes with a spur gear which has teeth set in a straight line, the rack. Rack and pinion gears are used to convert rotation into linear movement. An ideal example of this is actually the steering system 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 switch the wheel.
A rack and pinion system gives the ability to transfer rotary to linear movement, with all the accuracy expected of a Spur Gear Rack geared system.

The racks are manufactured from ground, hardened stainless steel or ground stainless steel and available with a choice of accuracies, pitches, and lengths, plus the facility to supply modifications such as for example flats, journals or custom ends. Hobbed stainless and brass racks are also available. The rack pinions are simple 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) suit measurement as the smaller pinion diameter provides higher linear resolutions. The bigger pitches (2 mm and 2.5 mm) enable an increased load capacity. For some applications the rack can be utilized for both the opinions and the actuation; yet, in very exact applications it is advisable to us a non-drive section of the rack for feedback, alternatively another rack may be used. Hobbed rack are more suited to light actuation applications where price is a key consideration.

We offer three types of rack – rectangular, solid circular and tubular rack. Rectangular rack are used when the application needs the rack to be stationary and the rack pinion supplies the element of movement. Our rectangular racks are used in combination with a engine, slide and carriage for example in the printing market for the actuation of paper trimming knives in a printing press. Round rack are a more flexible alternative, with regard to mounting, used for instance in XY levels. The tubular racks enable the passage of fluids, fibre-optics, gasses etc, making them perfect for medical and scientific applications, such as laboratory automation choose and place mechanisms.
Round racks are ideal 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.