Magnetic wear debris collector for air bearing of a spindle...

Details Magnetic wear debris collector for air bearing of a spindle... Magnetic wear debris collector for air bearing of a spindle...

2005-07-19

2005-07-19

Renner, Craig A. (Department: 2652)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

C360S099080, C029S603030

Reexamination Certificate

active

06920012

ABSTRACT:
A method and apparatus for providing magnetic wear debris collection for an air bearing of a spindle motor in a hard disk drive is disclosed. A magnetic ring is provided near one end of the journal bearing forming an air bearing. In addition, the mating surface of the air bearing is paramagnetic or ferromagnetic material. The magnetic ring, acting as a debris collector, collects debris from the air bearing to prevent deterioration of the air journal bearing. The journal bearing includes a mating surface. The mating surface may be of a paramagnetic or ferromagnetic material. A thrust bearing is provided to axially support the hub. The thrust bearing may be an oil bearing or an air bearing.

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