Abstract: Provided is a magnetic geared motor and a magnetic gear that support pole pieces with high rigidity, have small residual stress, and are very easy to assemble. Included are stator, first rotor that rotates by magnetic flux generated by stator, and second rotor that rotates at a speed different from that of first rotor. Second rotor includes a plurality of pole pieces annularly arranged along the circumferential direction of second rotor, and frame including a circumferential portion including a plurality of gaps respectively corresponding to the plurality of pole pieces and in each of which the corresponding one of the plurality of pole pieces is at least partly inserted. The plurality of pole pieces and frame are integrated with mold resin.

Abstract: A rotor includes: a rotor core including a plurality of first holes and a plurality of second holes; and a plurality of first permanent magnets arranged in the plurality of first holes, wherein the first holes and the second holes are provided radially around a rotating shaft, the rotor core in each of the plurality of second holes has a radial length smaller than a radial length of the rotor core in each of the plurality of first holes, each of the plurality of second holes is located closer to an inner side in the radial direction of the rotor core with respect to a first hole adjacent to the second hole in a circumferential direction of the rotor core among the plurality of first holes, and includes a protrusion protruding toward the first hole adjacent to the second hole in the circumferential direction of the rotor core.

Abstract: A magnetic wave gear device (1A, 1B, 1F) includes: a first member (10), a second member (20), and a third member (30) which are rotatable relative to one another around a rotation axis (R). The second member (20) is disposed between the first member (10) and the third member (30), and includes magnetic material pieces (21). The first member (10) includes first permanent magnets (12A, 12B). The third member (30) includes: a plurality of pole teeth (32), a pole tooth (32) being wound with a coil (33); and second permanent magnets (34B), each second permanent magnet (34B) being disposed between pole teeth (32) next to each other, and the magnetic poles of sides of the second permnanent magnets (34B) facing the second member (20) being the same pole.

Abstract: A magnetic wave gear device (1A, 1B, 1F) includes: a first member (10), a second member (20), and a third member (30) which are rotatable relative to one another around a rotation axis (R). The second member (20) is disposed between the first member (10) and the third member (30), and includes magnetic material pieces (21). The first member (10) includes first permanent magnets (12A, 12B). The third member (30) includes: a plurality of pole teeth (32), a pole tooth (32) being wound with a coil (33); and second permanent magnets (34B), each second permanent magnet (34B) being disposed between pole teeth (32) next to each other, and the magnetic poles of sides of the second permnanent magnets (34B) facing the second member (20) being the same pole.