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2. Cycloidal drive - Wikipedia

   en.wikipedia.org/wiki/Cycloidal_drive

   The reduction rate of the cycloidal drive is obtained from the following formula, where P means the number of the ring gear pins and L is the number of lobes on the cycloidal disc. = Single-stage efficiency approaches 93% and double-stage approaches 86%. [3]

3. Axial flux motor - Wikipedia

   en.wikipedia.org/wiki/Axial_flux_motor

   An axial flux motor (axial gap motor, or pancake motor) is a geometry of electric motor construction where the gap between the rotor and stator, and therefore the direction of magnetic flux between the two, is aligned parallel with the axis of rotation, rather than radially as with the concentric cylindrical geometry of the more common radial ...

4. Wheel hub motor - Wikipedia

   en.wikipedia.org/wiki/Wheel_hub_motor

   American Axle has developed 100 kW and 150 kW wheel-end motors through a project funded by the United States Department of Energy for the commercialization of clean-energy low-cost wheel-end motors. Costs were lowered by integrating the motor, inverter, and gear reduction into a single unit, and by avoiding heavy rare earth elements. [24]

5. Switched reluctance motor - Wikipedia

   en.wikipedia.org/wiki/Switched_reluctance_motor

   The switched reluctance motor (SRM) is a type of reluctance motor. Unlike brushed DC motors , power is delivered to windings in the stator (case) rather than the rotor . This simplifies mechanical design because power does not have to be delivered to the moving rotor, which eliminates the need for a commutator .

6. Reduction drive - Wikipedia

   en.wikipedia.org/wiki/Reduction_drive

   The Midwest twin-rotor wankel engine has an eccentric shaft that spins up to 7,800 rpm, so a 2.96:1 reduction gear is used. Aero-engine reduction gears are typically of the gear type, but smaller two-stroke engines such as the Rotax 582 use belt drive with toothed belts, which is a cheap and lightweight option with built-in damping of power surges.

7. Reluctance motor - Wikipedia

   en.wikipedia.org/wiki/Reluctance_motor

   The switched reluctance motor (SRM) is a type of reluctance motor. Unlike brushed DC motors , power is delivered to windings in the stator (case) rather than the rotor . This simplifies mechanical design because power does not have to be delivered to the moving rotor, which eliminates the need for a commutator .