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US 9,482,276 B2Granted
Method of filling lubricating fluid in hard disk drives
AssigneeSeagate Technology LLC
InventorsChris M. Woldemar, Hans L. Leuthold
Life of this patent
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Abstract
Provided herein is an apparatus, comprising a stationary component comprising a cup having a volume reserved for receiving a predetermined amount of lubricating fluid; a rotatable component comprising a sleeve, wherein the rotatable component is fitted within the stationary component in a position substantially above the volume; and an annular member configured for forming a thrust bearing with the sleeve.
Claims15
A method, comprising
- dispensing lubricating fluid into a cup of a stationary component, wherein
- the stationary component includes the cup and a shaft,
- the rotatable component includes a sleeve, and
- the sleeve is rotatable with respect to the shaft;
- inserting a rotatable component into a first position above the lubricating fluid in the cup, forming a partial composite assembly;
- fitting an annular member to the partial composite assembly;
- and
- further inserting the rotatable component into a second position in the cup, forming a composite assembly of a hard disk drive, wherein a bottom surface of the sleeve and an opposing surface of the cup form a thrust bearing.
5 more elements
A method, comprising
- dispensing lubricating fluid into a cup, wherein the cup is at a second axial end of a stationary component, wherein the stationary component includes a shaft and the cup;
- inserting a rotatable component into a first position above the lubricating fluid in the cup, forming a partial composite assembly, wherein the rotatable component includes a sleeve and the rotatable component is rotatable with respect to the stationary component;
- fitting an annular member to the partial composite assembly, wherein the annular member is a thrust plate at a first axial end of the stationary component;
- and
- further inserting the rotatable component into a second position in the cup, forming a composite assembly of a hard disk drive, wherein a bottom surface of the sleeve and an opposing surface of the cup form a thrust bearing in the composite assembly.
2 more elements
A method, comprising
- dispensing lubricating fluid into a cup of a stationary component, wherein the stationary component includes a shaft and the cup;
- inserting a rotatable component into a first position above the lubricating fluid in the cup, forming a partial composite assembly, wherein the rotatable component includes a sleeve and the rotatable component is rotatable with respect to the stationary component;
- fitting an annular member to the partial composite assembly;
- and
- further inserting the rotatable component into a second position in the cup, forming a composite assembly of a hard disk drive, wherein
- the rotatable component and the cup form a lower thrust bearing, and
- the annular member and the rotatable component form an upper thrust bearing.
4 more elements
Dependencies are inferred from the claim text.