Motor flywheel with integrated magnetic sensor ring

A motor comprising:

• a rotor rotatable about an axis and including a rotor shaft;
• a flywheel fixed to the rotor shaft to rotate therewith;
• and
• an encoder assembly including a sensed optical element and a sensed magnetic element,
• said encoder assembly further including an optical sensor assembly configured to sense relative movement of the optical element and a magnetic sensor assembly configured to sense relative movement of the magnetic element,
• said sensed elements being mounted on the flywheel for rotational movement therewith, such that the optical sensor assembly and the magnetic sensor assembly are each configured to sense rotation of the flywheel,
• said encoder assembly including a stationary circuit board mounted adjacent the flywheel and supporting the sensor assemblies,
• said flywheel including a wheel disc and a center wall,
• said circuit board positioned to extend radially along the wheel disc and axially overlap the center wall,
• said optical sensor assembly being located between the circuit board and the wheel disc,
• said sensor assemblies being mounted on opposite sides of the circuit board.