Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1995-06-06
1996-11-26
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
310 90, 310156, 360 9801, 360 7, G11B 1704, G11B 1708, H02K 2112, H02K 516
Patent
active
055791883
ABSTRACT:
An "ironless" bearing spindle motor for rotating at least one disc about a central axis in a data storage device comprises a housing, a stationary member, a hub, and a stator. A rotor magnet is attached to the hub. A bearing interconnects the hub with the stationary member such that the hub and rotor magnet are rotatable about the central axis. The stator is coaxial with the hub and includes an ironless stator winding. The ironless stator winding minimizes low-harmonic acoustic vibration peaks in the spindle motor, resulting in a spindle motor having a very quiet operation.
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Dunfield John C.
Heine Gunter K.
Jufer Marcel
Oveyssi Kamran
Giordana Adriana
Heinz A. J.
Seagate Technology Inc.
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