To ensure a length in an axial direction of the presence range of a radial clearance and a length in an axial direction of the coupling range of a shaft component while thinning a motor.
A motor includes: a shaft component having an inside shaft part 51 and an outside shaft part 61 arranged centering around a central axis; an upper plate part 52 constituting a member connected with one of the shaft component and expanding outward from an upper part of the one of the shaft component in a radial direction; and a lower plate part 62 constituting a member connected with another one of the shaft component and expanding outward from a lower part of the other one of the shaft component in a radial direction. A sleeve part 41 is arranged between the upper plate part 52 and the lower plate part 62, and a radial clearance 71 is constituted between the sleeve part 41 and the outside shaft part 61. At least a part in the axial direction of a coupling range, where the outside shaft part 61 and the inside shaft part 51 are overlapped with each other in a radial direction, is overlapped with a presence range in the axial direction of the radial clearance 71 in the radial direction.
SEKII YOICHI
TAMAOKA TAKETO
NISHIMURA HIDEKI
MIYAJIMA KAZUTO
IGUCHI TAKURO
SATO KAZUHIRO
SHUTO TAKEYUKI
Tsutomu Tanaka
Masamichi Ida