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US 5,957,587 AGranted
Air dynamic bearing
AssigneeSamsung Electronics Co., Ltd.
InventorMin-pyo Hong
Life of this patent
Estimating the term…
Abstract
An air dynamic bearing is constructed to prevent the inflow of a foreign substance. The air dynamic bearing includes an inner member having a lubricious surface and fixed to a shaft which rotates, and an outer member having a lubricious surface corresponding to the lubricious surface of the inner member and supporting the inner member to be operative to rotate. First grooves are formed in the lubricious surface of at least one of the inner and the outer members to generate a predetermined air pressure outward when the at least one of the inner and the outer members rotates.
Claims13
An air dynamic bearing comprising:
- an inner member having a lubricious surface and fixed to a shaft which rotates;
- and
- an outer member having a lubricious surface corresponding to the lubricious surface of said inner member and supporting said inner member to be operative to rotate,
- wherein at least one first groove is formed in the lubricious surface of at least one of said inner and said outer members, said first groove being formed at an angle with respect to the rotational direction of said inner member, said first groove including an inner end and an outer end and being angled such that the inner end of said first groove leads the outer end of the first groove in the rotational direction while said inner member is rotating, thereby to generate a predetermined air pressure outward when the at least one of said inner and said outer members rotates.
1 more element
Dependencies are inferred from the claim text.