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Hollow Shaft Planetary gear unit

The hollow structure unit has been developed based on Harmonic Planetary Gears® . The superior performance and specifications of HPG Series has been succeeded. Additionally, a hollow structure has been newly Introduced to enjoy the shape advantage. The pass-through hole with the coaxial I / O shaft Provides the compact gearing design to meet diversified customer needs,: such as piping, wiring, and passing-through laser light or combining with a ball screw.

Customer Benefits and Features

Optimised for your applications

  • Reduced diversity of components
  • High availability
  • Easy load connection
  • Increased productivity


  • Low backlash
  • Large Hollow shaft
  • Flexible motor adaption
  • Integrated high capacity output bearing
  • Compact design

Technical data

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