HAG harmonic drives now face METI export license controls. Learn how the July 8 update affects OEM delivery, procurement timing, and shipments to China, Vietnam, and Mexico.

BIS adds precision planetary gearboxes to export controls, reshaping industrial robot actuator sourcing for China. Learn the new license rules, risks, and supply chain impacts.

When selecting a motion control solution, understanding the strengths and limitations of a harmonic rotary actuator is essential. While these actuators are widely recognized for their exceptional precision and compact design, they also have inherent limitations that make them unsuitable for certain heavy-duty applications. This guide provides a comprehensive overview of the advantages and disadvantages of harmonic actuators, helping engineers choose the right transmission solution based on their specific application requirements.

A traditional servo rotary actuator consists of a rotor, stator, housing, bearings, end caps, and feedback components. A frameless motor removes all redundant mechanical structures and retains only the electromagnetic conversion core. The rotor becomes a direct part of the load shaft, while the stator is integrated into the machine structure through bonding, locking, or potting.