Retainer for an adjustable balance ring in a disc clamp assembly
AssigneeSeagate Technology LLC
InventorFrederick Paul Renken
Life of this patent
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Abstract
A disc clamp assembly and method for balancing a spindle hub assembly within a disc drive utilizes a base piece, a balance ring retainer piece and a balance ring. The disc clamp base piece is positioned on the top surface of the rotatable spindle hub to secure a disc stack to the spindle hub. The balance ring retainer piece is attached to the top surface of the base piece and defines a peripheral rim for accepting a balance ring. The balance ring has a predetermined mass to modify the center of gravity of the spindle hub assembly toward the central axis of rotation for the spindle hub.
Claims4
A balance ring retainer for balancing a spindle hub assembly, the balance ring retainer comprising:
- an annular shaped central web portion for operative attachment to the spindle hub;
- and
- a peripheral balance ring accepting portion spaced from the central web portion, the balance ring accepting portion for accepting a balance ring having a first end and a second end, wherein the gap distance between the two ends determines the predetermined mass of the balance ring, and wherein the mass of the balance ring is selected to improve the balance of the spindle hub assembly.
Dependencies are inferred from the claim text.