Preloaded rack and pinion drive
Atlanta Drive Systems
The simplest zero-backlash rack & pinion drive utilizes a split-pinion. A split-pinion consists of two pinion halves and an axial spring pack. The pinions halves mesh with opposite tooth flanks on the same rack, eliminating the backlash. The axial spring pack is used to preload the rack & pinions to insure that no backlash develops during the operating cycle.
The split-pinion shafts mount directly into our Servo Reducers and are fixed in place by means of a compression coupling. This provides rigid support and tight integration of the split-pinion shaft into the reducer. The end result is a compact and ultra-precise positioning axis drive.
These drives are perfect for precision positioning applications, such as traveling gantries and columns, milling machines, and material feel axis drives. Two reducers/motors can also be used to eliminate the axis backlash by electrical preload. For more information on this solution, please consult the factory.
