发明名称 |
HYDRODYNAMIC BEARING ASSEMBLY AND SPINDLE MOTOR INCLUDING THE SAME |
摘要 |
The hydrodynamic bearing assembly includes: a sintered sleeve having a shaft hole formed therein such that a shaft is rotatably inserted thereinto and including at least one dynamic pressure bearing part to generate dynamic pressure in a lubricating fluid filled in a bearing clearance at the time of rotation of the shaft; and a housing provided to enclose an outer peripheral surface of the sintered sleeve, wherein a bottom surface of a dynamic pressure groove of the at least one dynamic pressure bearing part has a porosity higher than that of a protrusion surface thereof.
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申请公布号 |
US2013121627(A1) |
申请公布日期 |
2013.05.16 |
申请号 |
US201213652816 |
申请日期 |
2012.10.16 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD.;SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
JUN CHANG KEUN |
分类号 |
H02K7/08 |
主分类号 |
H02K7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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