ELECTRIC MOTOR

An electric motor comprising: an output shaft defining an axis of rotation; a first nutating rotor rotationally coupled to the output shaft at a first tiltable connection; a first stator mechanically coupled to the first nutating rotor by a first nutating traction interface, such that during nutation of the first nutating rotor with respect to the first stator a tilt axis of the first nutating rotor progresses about the axis of rotation of the output shaft, wherein the first nutating rotor and a surface of the first stator are bound a radial dynamic air gap across which a first magnetic field is produced by electrical activation of the electric motor to generate a first force between the first nutating rotor and the first stator, and wherein the first nutating traction interface and the radial dynamic air gap are arranged such that, in a plane containing the axis of rotation of the output shaft, the first nutating traction interface is angled with respect to the surface of the first stator bounding the radial dynamic air gap, a second nutating rotor rotationally coupled to the output shaft; and a second stator mechanically coupled to the second nutating rotor by a second tiltable connection, wherein coils of the second stator are configured to be sequentially activated to cause the second nutating rotor to nutate about the axis of rotation of the output shaft, the first nutating rotor and the second nutating rotor transferring a cumulative torque. - 46 20309526_1 (GHMatters) P114954.AU.2