Fluid dynamic bearing assembly
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsSang Yong Oh, Sang Jin Park
Life of this patent
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Abstract
There is provided a fluid dynamic bearing assembly including: a sleeve having a shaft insertedly mounted therein; and upper and lower radial bearing parts formed on at least one of an outer circumferential surface of the shaft and an inner circumferential surface of the sleeve, wherein a clearance between the lower radial bearing part and a surface disposed to face the lower radial bearing part is wider than a clearance between the upper radial bearing part and a surface disposed to face the upper radial bearing part.
Claims7
A fluid dynamic bearing assembly comprising:
- a sleeve having a shaft insertedly mounted therein;
- and
- upper and lower radial bearing parts formed on at least an inner circumferential surface of the sleeve,
- wherein a clearance between the lower radial bearing part and a surface of the shaft disposed to face the lower radial bearing part is wider than a clearance between the upper radial bearing part and a surface of the shaft disposed to face the upper radial bearing part, and
- the inner circumferential surface of the sleeve is stepped in an axial direction so that a clearance between the lower radial bearing part and the shaft is wider than a clearance between the upper radial bearing part and the shaft.
A fluid dynamic bearing assembly comprising:
- a sleeve having a shaft insertedly mounted therein;
- and
- upper and lower radial bearing parts formed on at least an inner circumferential surface of the sleeve,
- wherein a clearance between the lower radial bearing part and a surface of the shaft disposed to face the lower radial bearing part is wider than a clearance between the upper radial bearing part and a surface of the shaft disposed to face the upper radial bearing part, and
- the shaft includes a diameter reducing part formed at a lower end thereof so that a clearance between the lower radial bearing part and the shaft is wider than a clearance between the upper radial bearing part and the shaft.
Dependencies are inferred from the claim text.