Bearings – Rotary bearing – Fluid bearing
Patent
1996-02-28
1997-07-01
Hannon, Thomas R.
Bearings
Rotary bearing
Fluid bearing
384108, F16C 3206
Patent
active
056429436
ABSTRACT:
A self-aligning air bearing suited to stabilize a rotary structure having a height greater than the width of the structure. A substantially round sleeve is located in a central chamber formed between a mated top and bottom race. An air gland mounted within the sleeve is disposed to receive a journal shaft fixed to the rotary structure, forming an air bearing interface between the shaft and gland when pressurized air is introduced. The sleeve is free within the central chamber to move and align with the axis of rotation of the rotary structure when the air enters the gland but may then be locked into its adopted alignment. The air bearing is particularly useful for supporting a distal end of an extended rotary apparatus in a system for writing servopatterns to the disk surfaces within a plurality of aligned head-disk assemblies (HDAs).
REFERENCES:
patent: 3875589 (1975-04-01), Applequist et al.
patent: 4184720 (1980-01-01), Zacherl
patent: 4318572 (1982-03-01), Noha et al.
patent: 4414589 (1983-11-01), Oliver et al.
patent: 4531169 (1985-07-01), Daniels
patent: 5172981 (1992-12-01), Williams et al.
patent: 5193084 (1993-03-01), Christiaens
Hannon Thomas R.
Ward James A.
Western Digital Corporation
Young Leo J.
LandOfFree
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