A motor, comprising: a bearing holder axially extending in a substantially cylindrical shape along a vertically-extending center axis; a bearing unit fixed to a radial inner surface of the bearing holder; a surrounding member fixed to a radial outer surface of the bearing holder, the surrounding member having an insertion hole through which the bearing holder is inserted; a shaft rotatably supported by the bearing unit; and a magnet rotating together with the shaft, wherein the bearing holder includes a plurality of holder protrusion portions each having a radial outer surface at least partially making contact with the surrounding member and a plurality of holder recess portions positioned radially inward of the holder protrusion portions, each of the holder recess portions having a radial inner surface at least partially making contact with the bearing unit, the radial outer surfaces of the holder protrusion portions being are positioned more radially outward than the radial outer surfaces of the holder recess portions, and the radial inner surfaces of the holder recess portions being positioned more radially inward than the radial inner surfaces of the holder protrusion portions, the holder protrusion portions and the holder recess portions are alternately arranged along a circumferential direction, the central angle (θ1) of a portion of an inner circumferential surface of the surrounding member remaining out of contact with each of the holder protrusion portions is equal to or larger than the central angle (θ2) of a portion of an outer circumferential surface of the bearing unit making contact with each of the holder recess portions, characterized in that the surrounding member includes a plurality of press-fit protrusion portions protruding radially inward from the inner circumferential surface of the surrounding member, a radial inner surface of the press-fit protrusion portions making contact with a radial outer surface of the holder protrusion portions, the press-fit protrusion portions are arranged at a substantially equal interval along the circumferential direction, and the circumferential width of a radial inner surface of each of the press-fit protrusion portions is smaller than the circumferential width of the radial outer surface of each of the holder protrusion portions. a bearing holder axially extending in a substantially cylindrical shape along a vertically-extending center axis; a bearing unit fixed to a radial inner surface of the bearing holder; a surrounding member fixed to a radial outer surface of the bearing holder, the surrounding member having an insertion hole through which the bearing holder is inserted; a shaft rotatably supported by the bearing unit; and a magnet rotating together with the shaft, wherein the bearing holder includes a plurality of holder protrusion portions each having a radial outer surface at least partially making contact with the surrounding member and a plurality of holder recess portions positioned radially inward of the holder protrusion portions, each of the holder recess portions having a radial inner surface at least partially making contact with the bearing unit, the radial outer surfaces of the holder protrusion portions being are positioned more radially outward than the radial outer surfaces of the holder recess portions, and the radial inner surfaces of the holder recess portions being positioned more radially inward than the radial inner surfaces of the holder protrusion portions, the holder protrusion portions and the holder recess portions are alternately arranged along a circumferential direction, the central angle (θ1) of a portion of an inner circumferential surface of the surrounding member remaining out of contact with each of the holder protrusion portions is equal to or larger than the central angle (θ2) of a portion of an outer circumferential surface of the bearing unit making contact with each of the holder recess portions, characterized in that the surrounding member includes a plurality of press-fit protrusion portions protruding radially inward from the inner circumferential surface of the surrounding member, a radial inner surface of the press-fit protrusion portions making contact with a radial outer surface of the holder protrusion portions, the press-fit protrusion portions are arranged at a substantially equal interval along the circumferential direction, and the circumferential width of a radial inner surface of each of the press-fit protrusion portions is smaller than the circumferential width of the radial outer surface of each of the holder protrusion portions.