发明名称 |
FLUID DYNAMIC BEARING AND HARD DISK DRIVE EMPLOYING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To provide a fluid dynamic bearing and a hard disk drive employing the same. SOLUTION: The fluid dynamic bearing includes a journal bearing part supporting a rotary shaft in a radial direction of the rotary shaft, a thrust part formed at one end of the rotary shaft, a thrust bearing part facing the thrust part and supporting the rotary shaft in a longitudinal direction of the rotary shaft, and a plurality of grooves formed on a surface of the thrust bearing part and/or the thrust part. The plurality of grooves include a first groove group including a plurality of grooves having the same shape and arrangement, and a second groove group adjacent to the first groove group and including at least one groove asymmetric with respect to the grooves of the first groove group. COPYRIGHT: (C)2006,JPO&NCIPI
|
申请公布号 |
JP2006132770(A) |
申请公布日期 |
2006.05.25 |
申请号 |
JP20050313325 |
申请日期 |
2005.10.27 |
申请人 |
SAMSUNG ELECTRONICS CO LTD |
发明人 |
HAN JAE-HYUK;OH DONG-HO;BYUN YONG-KYU;KIM CHEOL-SOON;KOH JEONG-SEOK;LEE NAM-HOON;KOO JA-CHOON |
分类号 |
F16C17/10;F16C33/10;H02K7/08 |
主分类号 |
F16C17/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|