Magnetic gear systems, methods, and apparatuses

A method of assembling a cycloidal magnetic gear, the method comprising:

• coupling a first plurality of magnetic pole pairs, a second plurality of magnetic pole pairs, and a third plurality of magnetic pole to an inner circumference of an outer rotor;
• coupling a first inner rotor, a second inner rotor, and a third inner rotor to an input shaft;
• coupling a fourth plurality of magnetic pole pairs to the first inner rotor, a fifth plurality of magnetic pole pairs to the second inner rotor, and a sixth plurality of magnetic pole pairs to the third inner rotor;
• and
• disposing the first inner rotor, the second inner rotor, and the third inner rotor within the outer rotor such that the fourth plurality of magnetic pole pairs interacts with the first plurality of magnetic pole pairs, the fifth plurality of magnetic pole pairs interacts with the second plurality of magnetic pole pairs, and the sixth plurality of magnetic pole pairs interacts with the third plurality of magnetic pole pairs.