Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1992-10-09
1995-02-28
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9807, 369266, 369269, 384528, G11B 1702, G11B 2300, F16C 3338
Patent
active
053942841
ABSTRACT:
The instability of a cage in a precision ball bearing at high speeds may be eliminated by controlling the position of the cage. The control of a position of a cage is accomplished by forming three ball pockets or holes in the cage for the balls of the ball bearing assembly to a dimension that will result in a tight running fit between the ball and the ball pocket. A tight running fit between the ball and the cage is found in three of the ball pockets in a ball bearing assembly while the diameter of the large ball pockets or other remaining ball pockets is enlarged to provide a clearance between the balls and the cage which is at least twice the clearance between the ball and the guide ball pocket having the tight running fit, and preferably three to five times that clearance. When properly lubricated, the tight running fit will insure stabilization and control of the cage so that the cage remains stable at high rotational speeds.
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Benson Glenn A.
Herman Peter M.
Luoma Richard W.
International Business Machines Corp.
Letscher George J.
Letson Laurence R.
Tupper Robert S.
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