Dynamic pressure bearing assembly

Abstract

The present invention discloses an improved dynamic pressure bearing assembly, comprising a bearing, an axial hole passing through the bearing, a plurality of aslant planes milled by a milling machine and extended along the axial direction and disposed on the periphery of the axial hole, and a dynamic pressure generating groove disposed among the planes. The dynamic pressure generating groove comprises a fluid lubricating medium therein, and thus the periphery of the axial hole can be manufactured on the planes very easily, and thus not only making the manufacturing easier, but also providing the required precision. Further, the present invention can evenly eject the fluid contained in everywhere inside each dynamic pressure generating groove towards the axle center by the drag of the centrifugal force, and further fix the axle center in place and maintain the axle center at the central position in the bearing.

Dependencies are inferred from the claim text.