| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device and method for a robust and shock resistant fluid dynamic bearing. <P>SOLUTION: A fluid sealing system with fluid pumping and capillary features provides increased reliability and performance for a small form factor disc drive memory system. Concerns of motor jog are addressed. The jog, which is the rapid and repeated opening and closing of spaces between relatively rotatable components, can dispel oil from, or draw air into, these spaces. The fluid pumping capillary sealing system includes a fluid pumping groove with a rib portion and a slot portion for pumping fluid. The fluid pumping capillary sealing system also includes a capillary seal. A sweeping rib sweeps fluid toward the bearing. A truncated rib is arranged adjacent to the sweeping rib. The truncated rib extends a shorter distance radially compared with the sweeping rib and forms a plenum region. <P>COPYRIGHT: (C)2010,JPO&INPIT |
