Racks are portions of a cylindrical disk with an infinite radius which has involute shaped tooth cut into its face. Racks mate specifically with spur gears that have the same module, pressure position and preferably face width. KHK offers gear racks in many components, configurations, modules and lengths. One exclusive feature of our racks can be that most are supplied with finished ends. This kind of production permits multiple racks to be butted, end-to-end, to create one continuous amount of rack. Many of the products that people offer allow for secondary operations such as reduction of the length, the adding of tapped holes, or the use of heat therapy. Our offering also contains products that have already had a few of these secondary operations completed.
The straight tooth cylindrical gear that 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 belongs to the parallel shaft category. The spur equipment that meshes with a equipment rack is generally called a pinion.
Besides equipment racks with straight series teeth, there are helical racks that have slanted the teeth. Helical equipment racks are paired with helical gears, but due to the slant of the tooth direction, as in helical gears, the mesh produces axial Metric Gear Rack thrust forces.
Among the apparatus racks’ main applications are machine tools and transport devices so when the applications involve transmitting linear motions, they are generally weighed against ball screws. In those instances, the main benefits of gear racks can be named this kind of as having the ability to fulfill a heavier load through the use of bigger modules and having no size limitation by connecting gear racks with completed ends. However, a good example of the disadvantages of gear racks includes the occurrence of backlash.
When manufacturing gear racks, because of their bar shape, bending often results. In these cases, corrective procedures using presses are often employed.