Racks are portions of a cylindrical disk with an infinite radius which has involute shaped teeth cut into its encounter. Racks mate solely with spur gears which have the same module, pressure angle and preferably encounter width. KHK offers gear racks in many materials, configurations, modules and lengths. One exclusive feature of our racks is definitely that most are given finished ends. This type of production allows for multiple racks to become butted, end-to-end, to create one continuous amount of rack. Many of the products that people offer allow for secondary procedures such as reduction of the space, the adding of tapped holes, or the use of heat therapy. Our offering also contains products which have already had some of these secondary operations completed.
The straight tooth cylindrical gear for which the radius of the pitch cylinder is infinite and in a bar form is called a gear rack. If it is sorted by the positions of the gear shafts, it is one of the parallel shaft category. The spur gear that meshes with a equipment rack is normally called a pinion.
Besides equipment racks with straight collection the teeth, there are helical racks that have slanted teeth. Helical equipment racks are paired with helical gears, but because of the slant of the tooth path, as in helical gears, the mesh creates axial thrust forces.
Among the gear racks' primary applications are machine tools and transport devices and when the applications involve transmitting linear motions, they are often weighed against ball screws. In those cases, the main advantages of gear racks could be named such as being able to satisfy a heavier load Metric Gear Rack through the use of bigger modules and having no duration limitation by connecting gear racks with finished ends. However, an example of the disadvantages of equipment racks includes the occurrence of backlash.
When manufacturing 
equipment racks, due to their bar form, bending often results. In these cases, corrective processes using presses tend to be employed.