DYNAMIC-PRESSURE BEARING MANUFACTURING METHOD, DYNAMIC-PRESSURE BEARING, AND DYNAMIC-PRESSURE BEARING DEVICE, SPINDLE MOTOR AND DISK DRIVING DEVICE WITH THE SAME

摘要

PROBLEM TO BE SOLVED: To improve abrasion resistance of a dynamic-pressure bearing formed from the porous sintered material, and to improve durability and reliability thereof. SOLUTION: This manufacturing method has a process for filling the first sintered material M1having magnetism in a mold 11 magnetized in the predetermined part thereof to adhere the first sintered material M1to the predetermined part with the magnetic force, a process for filling the second sintered material M2in the mold 11, a process for compressing the filled first sintered material M1and the second sintered material M2for molding, and a process for burning the sintered material compressed for molding. COPYRIGHT: (C)2004,JPO