Dynamic pressure bearing and fan using the same

Abstract

A dynamic Pressure bearing is used to solve the problem of abnormal noise generated by conventional dynamic Pressure bearingv. includes: a bearing group; and a rotating member, which has a rotating shaft, the rotating shaft is rotatably arranged in the bearing group, an inner end surface of the rotating shaft is provided with a protrusion, and the rotating member has a thrust plate, and the thrust plate is combined with the protrusion through a combination hole. The rotating shaft has an annular recessed portion, and the annular recessed portion surrounds the protruding portion. The invention further provides a fan having the dynamic pressure bearing. This can achieve the effect of the thrust plate stably rotating horizontally to avoid abnormal noise.

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