| 摘要 |
According to one embodiment of the present invention, a fluid hydrodynamic bearing shafting module comprises: a shaft unit having a shaft member and a flange member coupled to one end part of the shaft member; and a sleeve of which an inner diameter is smaller than an outer diameter of the flange member, and the outer diameter is greater than the outer diameter of the flange member supporting a shaft to be rotated. The purpose of the present invention is to provide a spindle motor having a fluid hydrodynamic bearing shafting module, and the fluid hydrodynamic bearing shafting module securing resistance to a vibrational impact and external noises. |
