| 摘要 |
A bearing system and a spindle motor assembly adopting the same are provided. The bearing system includes a lower base on which a fixed shaft is installed, a cylindrical body fit on the fixed shaft, first and second magnetic bodies installed on the upper and lower ends of the cylindrical body, respectively; a third magnetic body installed so as to face the second magnetic body on the lower end of the cylindrical body, a fourth magnetic body facing the first magnetic body on the upper end of the cylindrical body at a predetermined space, and an upper base to which the fourth magnetic body is fixed and which is fixed to the upper portion of the fixed shaft. Accordingly, a vibration source which generates vibration during rotation due to defects of ball bearing components and cumulative processing errors caused upon conventional ball bearing support is removed by axially and radially supporting the rotating body in a non-contact way, thereby achieving a super-high rotation speed and super-accurate rotation of the rotating body.
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