Motor and driving device for recording disk
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorChang Jo Yu
Life of this patent
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Abstract
A motor includes a sleeve supporting a shaft such that an upper end of the shaft protrudes upwardly along an axial direction, a sleeve housing in which an outer diameter portion of the sleeve is inserted and supported, an oil sealing cap covering the sleeve at an opposite side of the sleeve housing, and having a sealing protrusion protruding from a top surface thereof to form a capillary seal of oil between the shaft and the sleeve, and a hub base pressure-fitted and fixed on the upper end of the shaft, and having a hub-base outer diameter portion facing the sealing protrusion and forming a first oil sealing part with the sealing protrusion.
Claims11
A motor comprising:
- a sleeve supporting a shaft such that an upper end of the shaft protrudes upwardly along an axial direction;
- a sleeve housing in which an outer diameter portion of the sleeve is inserted and supported;
- an oil sealing cap covering the sleeve at an opposite side of the sleeve housing, and having a sealing protrusion protruding from a top surface thereof to form a capillary seal of oil between the shaft and the sleeve;
- and
- a hub base pressure-fitted and fixed on the upper end of the shaft, and having a hub-base outer diameter portion facing the sealing protrusion and forming a first oil sealing part with the sealing protrusion.
Dependencies are inferred from the claim text.