Rack And Pinion Linear Drive

Rack and pinion systems are a common component in railways.

Rack and pinion linear drive. Rack and pinion combinations are often used as part of a simple linear actuator where the rotation of a shaft powered by hand or by a motor is converted to linear motion. A rack and roller pinion system is a variation on the traditional rack and pinion that replaces the toothed pinion gear with a cage type pinion that incorporates bearing supported rollers. With rack and pinion steering the rotation of the pinion causes linear motion of the rack which turns the vehicle s wheels left or right. This force thus torque may still be substantial and so it is common.

Angle or planetary gearbox. Each roller in the pinion is supported by two needle bearings which eliminates the sliding friction that occurs in traditional rack and pinion systems. Güdel drive units are almost universally applicable. Rack and pinion linear drive systems atlanta germany atlanta are the world s largest supplier of precision rack and pinion with the largest range of high quality racks available.

Download this article in pdf format this file type includes high resolution. In fact manufacturers of linear actuators commonly offer rack and pinion drive versions and several profiled rail guide manufacturers offer integrated rack and pinion systems with the rack ground into the guide rail profile or the guide rail mounted directly on the rack. The rack carries the full load of the actuator directly and so the driving pinion is usually small so that the gear ratio reduces the torque required. In fact rack and pinion drives compare favorably to linear motors as well as roller or ground thread ballscrews.

A further advantage of our compact modules is the small size of these highly dynamic drive systems. A rack has the property that it can be infinitely long and the accuracy when assembled correctly does not decrease. The ideal configuration of your drive chain consists of. This is complemented by their servo gearboxes which are designed to support the resultant radial and axial forces.