Patent ID: 6166878
Filing Date: 2000-12-26
Classification: G11B

Abstract:
A disk drive comprising a reception mechanism for receiving a disk on which data are recorded; an ejection mechanism for ejecting the disk that has been received; a carriage mechanism which has a head unit for accessing to the disk and which holds said head unit so that said head unit is movable in a radial direction of said disk; a moving mechanism for moving said carriage mechanism; a disk table for holding and rotating said disk; and a drive motor for rotating said disk table, wherein:said motor comprises a rotor having a rotation shaft and a stator assembled on a motor chassis of metal and combined with said rotor;said stator being assembled on said motor chassis through a printed circuit board mounted on said motor chassis;said stator comprising a core assembly including a plurality of stator cores extending in a radial direction and stator coils each of which is wound around each of said plurality of stator cores;said stator further comprising a bearing unit of metal having a cylindrical shape for supporting said rotation shaft, said bearing unit having a flange portion formed at its lower part;said flange portion being interposed between a part of said core assembly and said motor chassis, said core assembly and said bearing unit being fixed to said motor chassis by a screw inserted through the part of said core assembly and said flange portion into said motor chassis.