DYNAMIC PRESSURE BEARING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a dynamic pressure bearing device having such a structure that obtains precision of a clearance of a thrust bearing part in a mass production manner while maintaining accurate rotation of a motor. SOLUTION: An inner peripheral face 11 of a bearing sleeve 10 and a cylindrical outer peripheral face 2 of a shaft body 1 are relatively, mutually, and rotatably fitted. A cover member 35 is provided on a holding face 13 on the opposite side to a thrust plate opposing face 12 of the bearing sleeve 10 for a thrust receiving plate 25. The thrust plate opposing face 12 of the bearing sleeve 10 and the holding face 13 are formed by a plane from the inner peripheral face 11 to the outer peripheral face 14. COPYRIGHT: (C)2006,JPO&NCIPI