ORBITLESS Technology

The first fundamentally new gearbox design in centuries.

The basic premise of Orbitless is very simple.

Remove the Ring Gear and replace with another carrier, attached via a second shaft in the planet. The carrier AND planet shafts are all offset by the same amount so the carriers rotate and the planets only circulate. THAT is what makes an ORBITLESS™ drive smooth, efficient and vibration-free

Orbitless uses standard gear components and takes advantage of most innovations in gear tooth design and optimization when implemented in an Orbitless gearbox.  Orbitless’ measured results have changed the game from a Efficiency, Noise and performance perspective.

If you are a designer of gearboxes, gearmotors or any powertrain system, contact us to learn more about the performance advantage of Orbitless

Click here for videos of the Orbitless Drive in action

Technical Publications on Orbitless

L. Stocco, The Orbitless Drive, 2016 ASME International Mechanical Engineering Congress & Exposition, Nov. 11-17, 2016.

L. Stocco, The Coupled Orbitless Drive, 2016 ASME International Mechanical Engineering Congress & Exposition, Nov. 11-17, 2016.

Best of Gears 2017 – Selected contributions from the VDI International Conference on Gears 2017.  Published in Forschung im Ingenieurwesen, Springer-Nature.  Download hereA New Standard of Epicyclic Efficiency – A Practical Comparison of Planetary and Orbitless Gear-Heads. L. Stocco, R. Gloeckner,

Conference Proceedings for ICG 2017 Presentation – Download here

See other papers here



Ratios from 1.5:1 to 4:1 (in a single stage)
 – No assembly criteria for exact ratios
 – Sequential meshing & hunting teeth
 – High ratios also avail

Inexpensive to manufacture
 – No ring gear
– Enables increase use of plastics
 – Thin drive enclosure using any material
 – No exotic grinding & heat treating

More Efficient with Higher Speed Rating
 – Low pitch velocity
 – Low bearing speed
 – Low inertia from non-rotating planets
– Low Noise / Vibration / Harshness
– Co-Axial or Offset Drive Shafts

The Orbitless Platform

Orbitless is not one gearbox design, but rather a platform that can be implemented in a variety of configuration options to meet your specific application requirements.

Very Low or Very High ratios
Back-Driveable or Self-Locking
In-line or Offset drive axes
 High torque 
Spur or Helical
Chain / Sprocket / Belt or Pulley options

For more details on this exciting technology, including technical papers, please contact us.