Turnkey high class planetary Servo-Gearhead, dedicated to Rack & Pinion applications.
The new benchmark for electrical preload on demanding machine tool applications! KRPX is the new version of REDEX ANDANTEX rack & pinion high-tech planetary reducers, offering cost effective, easy to implement and high performing solutions for moving column or gantry machine types as well as many other applications.
The KRPX housing is made of high quality spheroidal graphite cast iron. Its structure has been optimised with finite element analysis methods to avoid deflection during acceleration. Fixation is made by oversized screws to ensure a real stiff connection with the machine frame allowing the KRPX housings to be considered as an integral part of the machine main frame.
The output pinions are machined to the same diameter as the shafts, allowing the best possible balance between transmittable torque and rigidity at the rack. In addition, output shaft consists of two preloaded and substantially oversized tapered roller bearings support.
This exclusive design offers exceptional compound stiffness which allows to dramatically decrease the radial bending (up to 60% of the overall distortion) and to increase the natural frequency of the Rack & Pinion drive system.
By combining two high-tech planetary reducers, KRPX allows perfect mounting on both sides of the machine frame and enables true zero backlash when coupled with an electrical preload system.
Available in 5 standard sizes KRPX is very compact, and easy to install. Ratios from 5:1 to 91:1 with feed force from 9000 N to 155,000 N.