Invention Grant
US07880353B2 Spindle motor having holding magnet preventing oil discharge 有权
具有保持磁铁的主轴电动机防止排油

Spindle motor having holding magnet preventing oil discharge
Abstract:
Disclosed herein is a spindle motor. The spindle motor includes a rotating shaft, a rotor cover which is secured to the rotating shaft and rotates the rotating shaft, a bearing for rotatably supporting the rotating shaft, a holder for holding the bearing, and a holding magnet which is directly mounted to an inner wall of the rotor cover. In this case, the holding magnet is positioned above the bearing to prevent oil from being discharged from the bearing to the outside.
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