Racks are portions of a cylindrical disk with an infinite radius which includes involute shaped the teeth cut into its face. Racks mate exclusively with spur gears which 
have the same module, pressure position and preferably encounter width. KHK offers gear racks in many materials, configurations, modules and lengths. One exclusive feature of our racks is certainly that most are supplied with finished ends. This type of production allows for multiple racks to end up being butted, end-to-end, to create one continuous amount of rack. Most of the products that people offer enable secondary functions such as for example 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’s 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 normally called a pinion.
Besides equipment racks with straight range the teeth, there are helical racks which 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 generates axial thrust forces.
Among the apparatus racks’ main Metric Gear Rack applications are machine tools and transport devices so when the applications involve transmitting linear motions, they are generally compared with ball screws. In those situations, the main advantages of gear racks could be named such as having the ability to meet a heavier load through the use of bigger modules and having no size limitation by connecting gear racks with completed ends. On the other hand, a good example of the disadvantages of gear racks includes the occurrence of backlash.
When manufacturing equipment racks, because of their bar shape, bending often outcomes. In these cases, corrective processes using presses are often employed.