KRPX is a Side Mounted high performance planetary Servo-Reducer, dedicated to Rack & Pinion applications.

The unique KRPX housing is designed to act as a RIGID MACHINE FRAME EXTENSION. The accessible side mounting offers a cost effective, easy to implement, high performance solution for both linear and rotary axis drives.

Two units are combined together with electrical preload (TwinDRIVE) to create an extremely stiff ZERO-BACKLASH axis. The KRPX housing design has been optimized by finite element analysis to avoid deflection during acceleration and heavy loads. Furthermore, the output pinions are machined directly into the output shafts and supported by extra-large, preloaded tapered roller bearings to provide the best balance between transmittable torque and stiffness on the rack.

KRPX exclusive design offers exceptional compound stiffness which dramatically decreases the radial bending (up to 60% of the overall deflection) 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.

  • 5 Sizes
  • In-Line or Right Angle arrangements
  • Reduction ratios: 5 to 91
  • Acceleration up to: 1000 in/s^2 (25 m/s^2)
  • Nominal feed force up to: 24,000 Lbs. (105,000 N)
  • Acceleration feed force up to 35,500 Lbs. (158,000 N)
  • Max axis weight up to 200,000 Lbs. (90,000 kg)
  • Max linear speed up to: 6000 in/min. (150 m/min)
  • ZERO-BACKLASH by design

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