A motor comprising: a shaft centered on a center axis oriented in a vertical direction; a bearing mechanism rotatably supporting the shaft; an armature disposed radially outward of the bearing mechanism; a bracket to which the bearing mechanism and the armature are fixed; and a covered cylindrical rotor connected to the shaft, wherein the rotor includes a disk-shaped rotor lid portion connected to the shaft, a rotor side wall portion extending downward from an outer edge of the rotor lid portion, and a rotor magnet radially opposed to the armature radially outward of the armature and indirectly or directly fixed to an inner peripheral surface of the rotor side wall portion, the bracket includes a cylindrical portion having an outer peripheral surface to which the armature is fixed and an inner peripheral surface to which the bearing mechanism is fixed, the bearing mechanism includes a lower ball bearing supporting a lower portion of the shaft, and an upper ball bearing disposed higher than the lower ball bearing to support the shaft, the shaft includes a shaft main body having a male screw portion projecting downward from the lower ball bearing at a lower end portion of the shaft main body, and a nut attached to the male screw portion, a lower surface of an inner ring of the lower ball bearing is in contact with an upper surface of the nut, an upper surface of an outer ring of the lower ball bearing is vertically supported by the cylindrical portion, an inner ring of the upper ball bearing is vertically fixed with respect to the shaft main body, a lower surface of an outer ring of the upper ball bearing is vertically supported by the cylindrical portion via an elastic member, the cylindrical portion includes a cylindrical central portion which is a portion between the upper surface of the lower ball bearing and the lower surface of the upper ball bearing, and the elastic member is arranged between the upper surface of the cylindrical central portion and the lower surface of the outer ring of the upper bearing. a shaft centered on a center axis oriented in a vertical direction; a bearing mechanism rotatably supporting the shaft; an armature disposed radially outward of the bearing mechanism; a bracket to which the bearing mechanism and the armature are fixed; and a covered cylindrical rotor connected to the shaft, wherein the rotor includes a disk-shaped rotor lid portion connected to the shaft, a rotor side wall portion extending downward from an outer edge of the rotor lid portion, and a rotor magnet radially opposed to the armature radially outward of the armature and indirectly or directly fixed to an inner peripheral surface of the rotor side wall portion, the bracket includes a cylindrical portion having an outer peripheral surface to which the armature is fixed and an inner peripheral surface to which the bearing mechanism is fixed, the bearing mechanism includes a lower ball bearing supporting a lower portion of the shaft, and an upper ball bearing disposed higher than the lower ball bearing to support the shaft, the shaft includes a shaft main body having a male screw portion projecting downward from the lower ball bearing at a lower end portion of the shaft main body, and a nut attached to the male screw portion, the rotor includes a disk-shaped rotor lid portion connected to the shaft, a rotor side wall portion extending downward from an outer edge of the rotor lid portion, and a rotor magnet radially opposed to the armature radially outward of the armature and indirectly or directly fixed to an inner peripheral surface of the rotor side wall portion, a disk-shaped rotor lid portion connected to the shaft, a rotor side wall portion extending downward from an outer edge of the rotor lid portion, and a rotor magnet radially opposed to the armature radially outward of the armature and indirectly or directly fixed to an inner peripheral surface of the rotor side wall portion, the bracket includes a cylindrical portion having an outer peripheral surface to which the armature is fixed and an inner peripheral surface to which the bearing mechanism is fixed, the bearing mechanism includes a lower ball bearing supporting a lower portion of the shaft, and an upper ball bearing disposed higher than the lower ball bearing to support the shaft, a lower ball bearing supporting a lower portion of the shaft, and an upper ball bearing disposed higher than the lower ball bearing to support the shaft, the shaft includes a shaft main body having a male screw portion projecting downward from the lower ball bearing at a lower end portion of the shaft main body, and a nut attached to the male screw portion, a shaft main body having a male screw portion projecting downward from the lower ball bearing at a lower end portion of the shaft main body, and a nut attached to the male screw portion, a lower surface of an inner ring of the lower ball bearing is in contact with an upper surface of the nut, an upper surface of an outer ring of the lower ball bearing is vertically supported by the cylindrical portion, an inner ring of the upper ball bearing is vertically fixed with respect to the shaft main body, a lower surface of an outer ring of the upper ball bearing is vertically supported by the cylindrical portion via an elastic member, the cylindrical portion includes a cylindrical central portion which is a portion between the upper surface of the lower ball bearing and the lower surface of the upper ball bearing, and the elastic member is arranged between the upper surface of the cylindrical central portion and the lower surface of the outer ring of the upper bearing.