Great example, also from rotating systems, is the harmonic drive gearbox -- a ve...

		beambot on March 30, 2019 \| parent \| context \| favorite \| on: Magnetic Bearings Might Keep Motor Spinning for Mi... Great example, also from rotating systems, is the harmonic drive gearbox -- a very compact & high gear ratio device that (curiously) uses a deformable metal "cup" (flexspline) rather than a 100% rigid piece of metal like a traditional gear. Huge improvement that is now commonplace in robotics. https://en.m.wikipedia.org/wiki/Harmonic_drive