MOTOR DEVICE

To provide a motor device that can suppress the distortion of a sensor magnet.SOLUTION: A holder member 38 includes a press-fit fixing unit 38b into which a rotary shaft 32 is press-fitted, and a gap-forming unit 38c connected to an axial end of the press-fit fixing unit 38b, in which a gap SP is formed between itself and the rotary shaft 32, and a flange 39 that is provided on the side opposite to the side where the press-fit fixing unit 38b is provided in the axial direction of the gap-forming unit 38c and protrudes outward in the radial direction of the gap-forming unit 38c. An inner circumference IN of a sensor magnet SM is fixed to an outer circumference 39a of the flange 39. A first end face SF1 of the side where a press-fit fixing unit 38b in the axial direction of the sensor magnet SM is provided is arranged in an axial direction range of the gap-forming unit 38c.SELECTED DRAWING: Figure 11 【課題】センサマグネットの歪みを抑えることができるモータ装置を提供する。【解決手段】ホルダ部材３８は、回転軸３２が圧入される圧入固定部３８ｂと、圧入固定部３８ｂの軸方向端部に接続され、回転軸３２との間に隙間ＳＰが形成される隙間形成部３８ｃと、隙間形成部３８ｃの軸方向における圧入固定部３８ｂが設けられる側とは反対側に設けられ、隙間形成部３８ｃの径方向外側に突出されたフランジ部３９と、を備え、フランジ部３９の外周部３９ａに、センサマグネットＳＭの内周部ＩＮが固定され、センサマグネットＳＭの軸方向における圧入固定部３８ｂが設けられる側の第１端面ＳＦ１が、隙間形成部３８ｃの軸方向範囲に配置される。【選択図】図１１