Abstract: A rotor extends towards the central axis of an electric motor rotation and is rotatably supported about the central axis of rotation. The rotor includes: permanent magnets arranged in its outer peripheral portion wherein N-poles and S-poles are alternately formed in the circumferential toward the rotor in the outer peripheral portion of the rotor, the N-poles and the S-poles being magnetic poles extending parallel toward the central axis of rotation; an outer peripheral core located facing the permanent magnet outer peripheral surfaces intermediate portions, the same portions excluding both end portions toward the central axis of rotation; and two terminal cores located at each end of the rotor toward the central axis of rotation. The outer peripheral core and the terminal cores are made of a magnetic material, and the maximum magnetic permeability of the terminal cores is equal to or less than that of the outer peripheral core.

Abstract: A sensor unit manufacturing method includes: a core metal insertion process of inserting a core metal member having a length dimension smaller than a length dimension of a core metal accommodation portion into a predetermined location (a section of a curving portion) extending along a longitudinal direction of the core metal accommodation portion; and a bending process of bending the section (the section of the curving portion) of a fixation base portion, into which the core metal member is inserted, following a curved shape of a sensor bracket.

Abstract: A sensor unit manufacturing method includes: a core metal insertion process of inserting a core metal member having a length dimension smaller than a length dimension of a core metal accommodation portion into a predetermined location (a section of a curving portion) extending along a longitudinal direction of the core metal accommodation portion; and a bending process of bending the section (the section of the curving portion) of a fixation base portion, into which the core metal member is inserted, following a curved shape of a sensor bracket.