maxon motor small PMDC servo motor

maxon motor Australia has implemented the first combination of a small PMDC servo motor with a dual gearhead combination using both planetary and Helicon gear technology. The application is a gyro stabilised cinematography camera mount with nine degrees of freedom.

The customer required both inline and right-angle gearboxes for the different axis but also needed the same ratio throughout. Worm gearheads could not be used because of their inherently low efficiency and a helical of the correct ratio would be too large for the torque requirements.

The solution was to use a combination of a ceramic planetary gearhead and the new spiroid gearhead technology. The multiplication of the two gearbox efficiencies is an impressive 72% while the equivalent ratio in a single ceramic planetary is only marginally better at 75%. The single helicon tooth form in itself has an efficiency of 90%.