Gearheads

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About our Gearheads

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

Compare our Gearheads

Flange Output FLANGE Output, PINION Output

 

Harmonic Gearhead

Harmonic Gearhead

Harmonic Gearhead with Pinion

Harmonic Gearhead with Pinion

Gearhead Ratio 50:1 to 120:1
Maximum Acceleration Torque Up to 1,057 Nm [9,355 in-lb] Up to 458 Nm [4,054 in-lb] with Integrated Pinion
Maximum Acceleration Thrust (When used with RPS Rack) N/A Up to 6,000 N [1,349 ft-lb]
Maximum Backlash 0 ArcSec
One-Way Positional Accuracy 45 ±ArcSec 25 ±ArcSec
One-Way Repeatability 10 ±ArcSec 7.5 ±ArcSec
Maximum Cyclic Input Speed Up to 7300 RPM
Maximum Continuous Input Speed Up to 3650 RPM
Inertia at Input 0.1952 to 20.485 kgcm²
[0.0667 to 7.000 lbin²]
0.1954 to 20.518 kgcm²
[0.0667 to 7.0114 lbin²]

Required Components and Accessories for our Gearheads 

Listed below are some of the Required Components and Accessories for Gearheads. Use the filters above to find the complete list of Required Components and Accessories on the product page.

Accessories

  • Pinion Preloader 
  • Roller Pinions
  • Adapter Flanges
  • Grease

Applications

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

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Note: The technical data on this website is subject to change without notice. Please contact Nexen for help with your application, appropriate sizing, and configuration.