Hydrodynamic bearing assembly and spindle motor including the same
There are provided a hydrodynamic bearing assembly and a spindle motor including the same. The hydrodynamic bearing assembly includes: a sleeve including a shaft hole to have a shaft rotatably installed therein; and a cover member covering the shaft hole at a lower portion of the shaft hole in an axial direction, wherein an inner surface of the sleeve is provided with depression parts depressed in an outer diameter direction between upper and lower portions of the sleeve and portions in which radial bearings are formed, such that the portions in which the radial bearings are formed are provided with bearing closure adhesion parts allowing the portions in which the radial bearings are formed to be closer to the shaft than portions other than the portions in which the radial bearings are formed.
Samsung Electro-Mechanics Co., Ltd.
F G F F
F16C G11B F16C F16C
inventional inventional additional inventional
Ju Ho Hyun Ho Sung Yeol Seung Heon Hong Joo
Kim Shin Park Han Lee