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AssigneeSeagate Technology LLC
InventorsHans Leuthold, David Jennings, Lakshman Nagarathnam, Raquib Khan, Greg Rudd
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A self-lubricating hydrodynamic spindle bearing comprising a stationary shaft including a conical, inwardly tapered surfaces extending axially form outer regions of the shaft toward a center connecting region of the shaft, a rotatably mounted sleeve surrounding the shaft and including surface regions flared axially inwardly toward a center region of the sleeve, the tapered surface regions and the flared surface regions defining a bearing gap for the hydrodynamic bearing, the sleeve defining a connection region adjacent the connecting region between the tapered surfaces of the shaft, the connection region including a tube collapsible in response to a change in internal pressure in the connection region to stabilize stiffness and power consumption in the bearing.
A self-lubricating hydrodynamic spindle bearing comprising:
A spindle motor for use in a disc drive said spindle motor including a hub which supports one or more discs for rotation at a constant speed, and a hydrodynamic bearing supporting said hub on an outer surface of a rotatably mounted sleeve surrounding and rotating around a fixed shaft and including regions flared inwardly toward a center region of said sleeve,
Dependencies are inferred from the claim text.