spur gear rack

Rack and pinions are used for lifting mechanisms (vertical movement), horizontal movement, positioning mechanisms, stoppers and to permit the synchronous rotation of several shafts generally industrial machinery. However, also, they are used in steering systems to change the direction of cars. The characteristics of rack and pinion systems in steering are as follows: simple framework, high rigidity, little and lightweight, and exceptional responsiveness. With this mechanism, the pinion, installed to the steering shaft, can be meshed with a steering rack to transmit rotary movement laterlly (converting it to linear motion) to ensure that you can control the wheel. In addition, rack and pinions are Spur Gear Rack utilized for several other purposes, such as toys and lateral slide gates.

As a mechanical component to transfer rotary into linear movement, gear racks are often in comparison to ball screws. There are benefits and drawbacks for using racks instead of ball screws. The benefits of a equipment rack are its mechanical simplicity, huge load carrying capacity, and no limit to the space, etc. One disadvantage though is the backlash. The advantages of a ball screw are the high precision and lower backlash while its shortcomings are the limit in duration due to deflection.

There are applications where in fact the gear rack is stationary, while the pinion traverses and others where in fact the pinion rotates upon a fixed axis as the gear rack moves. The former is used widely in conveying systems as the latter can be used in extrusion systems and lifting/lowering applications.

To provide many variations of rack and pinion, KHK has many types of gear racks in stock. If the application takes a long duration requiring multiple equipment racks in series, we've racks with the tooth forms correctly configured at the ends. These are described as “gear racks with machined ends”. Whenever a equipment rack is created, the tooth cutting procedure and heat treatment process could cause it to try & walk out true. We are able to control this with unique presses & remedial processes.