TURNTABLE, MOTOR INCLUDING THE TURNTABLE, STORAGE DISK DRIVE APPARATUS INCLUDING THE MOTOR, AND METHOD FOR MANUFACTURING THE TURNTABLE

摘要

turntable of the recording disk drive device is arranged in the center of the plate member and the plate member made of a ferromagnetic material, a central member formed of resin by injection-molding a resin , and the resin member and the central disk guide portion for guiding the disk center hole provided on an upper surface of the , in the middle resin member , upward from the lower surface of the central resin member L which is provided a plurality of gate recesses , the plurality of the gate recess is located on the upper side of the ceiling plate member , a plurality of the gate cut portion is provided in the injection molding on the top surface . ;