Fluid dynamic bearing system for supporting of rotor against stator in spindle motor in hard disk drive for rotary driving of magnetic storage disk, has channels whose sections exhibit increased radial distance to axes than openings

The system has a rotating component that is supported relative to a fixed component in a rotatable manner around rotation axes (46), where the fixed component comprises a shaft (12). Recirculation channels (28) are provided with two openings, which are filled with bearing fluid i.e. bearing oil. The...

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Bibliographische Detailangaben
Hauptverfasser:	SCHWAMBERGER, STEFAN, ENGESSER, MARTIN
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BEARINGS BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CYLINDERS DYNAMO-ELECTRIC MACHINES ELECTRICITY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LIGHTING MECHANICAL ENGINEERING PHYSICS PISTONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SEALINGS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The system has a rotating component that is supported relative to a fixed component in a rotatable manner around rotation axes (46), where the fixed component comprises a shaft (12). Recirculation channels (28) are provided with two openings, which are filled with bearing fluid i.e. bearing oil. The openings of the channels are led into bearing gaps (20) or a gap that is connected with the bearing gaps in a radial distance from the rotation axes, where sections of the channels exhibit increased radial distance to the axes than the openings. Independent claims are also included for the following: (1) a spindle motor that comprises a drive system (2) a hard disk drive that is provided with a writing-and reading device.