ATB Automation logo

Wanshsin WSHG-I/II
Harmonic Strain Wave reducer

  • Harmonic gear - Wanshsin SHG-I/II
  • Nominal torque up to 160 Nm
  • 50:1 - 120:1 / 15-20 arcsec
Harmonic Drive
Exploded view Strain wave reducer

The gears with output bearing of the WSHG series are ideal for highly dynamic applications, such as in robot axes. This is supported by: enormous torque density, high-tilt output bearing, lifelong precision and zero backlash.

The WSHG series is a compact gear unit based on the Harmonic strain wave principle. Generally, the circular spline end is fixed and the flex spline is the output rotating side.


The input motor shaft is directly connected to the harmonic gear unit by means of a hollow shaft with keyway.


The input motor shaft is connected to the hollow shaft of the harmonic gear unit by means of a coupling.

The WSHG gear unit has the same dimensions and specifications as the Harmonic Drive SHG series.

  • Quick response, short lines
  • Renowned manufacturers
  • Profound product knowledge
  • High reliability

We supply slewing ring bearings, oscillating mountings, tensioner devices from stock and we also have spiral bevel gearboxes, servo gears and electromechanical actuators in our delivery program.

In addition we also select and offer the right components and systems for motion control solutions, such as servo gear motors, linear servo actuators and complete XYZ cartesian systems.

Saving enerie with Rosta motorbase

The cheapest energy is the energy you don’t use

"Approximately one third of motors are equipped with friction belt drives. The performance and efficiency of many belt drives can be improved through...

Read blog

Loading ...


Loading ...