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Nexen’s revolutionary Harmonic Gearhead (HG) is the ideal combination of size and precision. The Harmonic Gearhead integrated with Nexen’s Roller Pinion System creates a true backlash-free solution from the motor to the driven load, delivering high load capacity in a compact package.

With up to a 70% reduction in length over standard gearheads, machine designers have greater opportunities available with this space-saving product.

Gearheads are a replacement for non-rigid, bulky, high-ratio gearboxes. Utilizing zero-backlash strain wave technology for maximum system rigidity and space-saving allows for the Harmonic Gearhead to:

  • Operates in less than half the space
  • Zero backlash directly to the motor
  • Quiet operation
  • Output torque up to 1,057 Nm
  • Thrust up to 6,000 N on units with integrated pinion output
  • Rotational accuracy of ± 45 ArcSec and linear accuracy of ± 25 μm on units with an integrated pinion on the output
  • Rotational repeatability of ± 10 ArcSec and linear repeatability of ± 7.5 μm on units with an integrated pinion on the output
  • Rugged cross-roller output bearing supports moment loads up to 1,590 Nm


Nexen’s Gearheads are ideal for applications like:

  • Aerospace
  • Robotics
  • Semiconductor
  • Factory Automation
  • Medical/Surgical
  • Machine tools
  • Robots and robotic arms
  • Rack and pinion systems
  • General industrial positioning

Rotary Motion Control

Experience the pinnacle of precision and reliability with Nexen’s Precision Rotary Motion technology, Nexen delivers highly precise rotary drive systems, powerful rotary brakes, and mechanical torque limiters, resulting in an impeccable performance with zero backlash.

Rotary Indexers

Enhance Precision and Efficiency with Nexen’s Patented Rotary Indexer Systems

Roller Pinion Gears

Roller Pinion Gears

Experience Zero Backlash with Nexen’s Precision Rotary Motion Technology

Precision Brakes

Achieve Secure and Backlash-Free Installation with Nexen’s Precision Brakes

Nexen Gearheads


Revolutionize Your Design with Nexen’s Compact and Precise Harmonic Gearhead

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