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Product/Service Catalog

GPL Series Robotic Planetary Gearbox

Model: GPL-F, GPL-H

GAM Enterprises, Inc.

GAM’s GPL Series Robotic Planetary Gearboxes provide the lowest backlash and high tilting rigidity for horizontal and vertical robotic and motion control applications.


  • Backlash of ≤ 0.1 arcmin, the GPL Series can be considered a zero backlash gearbox
  • Patented design guarantees the backlash will not increase over the life time of the gearbox
  • Best-in-the-market torsional rigidity for ≤ 0.6 arcmin lost motion
  • Industry-accepted proven performance
  • Seven sizes with nominal output torque of 445 to 3505 Nm and ratios of 50:1 to 200:1
  • Flanged solid shaft output (GPL-F) or flanged hollow shaft output (GPL-H) (up to 75 mm through hole)
  • Integrated Motor Adapter Plate ready to mount your motor
  • Right angle GPR available


The GPL Series can be used in a variety of applications where zero-backlash, high tilting and torsional rigidity, and long life are required. With the large output mounting flange, through-hole option, and servo-ready mount, the GPL is ideal for any robotic and motion control applications:

  • Robots
  • Handling systems
  • Tool changers
  • Positioning
  • Rack & pinion
  • Pick & place
  • Turntables
  • and many more 



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