Fluid dynamic bearing system and a spindle motor having this kind of bearing system
US-9214182-B2 · Dec 15, 2015 · US
Spindle motor and hard disk drive including the same
US8995083B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8995083-B2 |
| Application number | US-201313973441-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 22, 2013 |
| Priority date | Apr 23, 2013 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
Official abstract text for this publication.
There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes: a sleeve supporting a shaft so that an upper end of the shaft protrudes upwardly in an axial direction and a bearing clearance filled with a lubricating fluid formed between the sleeve and the shaft; a housing provided so as to enclose an outer peripheral surface of the sleeve and forming a circulation hole between the housing and the sleeve in the axial direction; and a rotor hub fixedly installed on an upper end portion of the shaft in the axial direction, wherein a connection part is formed between the housing and the rotor hub so as to allow a sealing part on which a liquid-vapor interface is disposed and the circulation hole to be in communication with each other.
First claim
Opening claim text (preview).
What is claimed is: 1. A spindle motor comprising: a sleeve supporting a shaft so that an upper end of the shaft protrudes upwardly in an axial direction and a bearing clearance filled with a lubricating fluid formed between the sleeve and the shaft; a housing provided so as to enclose an outer peripheral surface of the sleeve and forming a circulation hole between the housing and the sleeve in the axial direction; a rotor hub fixedly installed on an upper end portion of the s…
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Mechanical Engineering · mapped topic
- G11B19/2036Primary
Physics · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8995083B2 cover?
- There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes: a sleeve supporting a shaft so that an upper end of the shaft protrudes upwardly in an axial direction and a bearing clearance filled with a lubricating fluid formed between the sleeve and the shaft; a housing provided so as to enclose an outer peripheral surface of the sleeve and forming a …
- Who is the assignee on this patent?
- Samsung Electro Mech
- What technology area does this patent fall under?
- Primary CPC classification G11B19/2036. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).