| 摘要 |
<P>PROBLEM TO BE SOLVED: To reliably lubricate an inner ring of a rolling bearing supporting a drive shaft, with a lubricating oil. <P>SOLUTION: A compression mechanism is formed with a discharge chamber including a lubricating oil and at higher pressure than in a lower space (S2). The discharge chamber and an upper bearing member (4) are made to communicate with each other through a communication path (9), and by using a pressure difference between the discharge chamber and the lower space (S2), a lubricating oil from the communication path (9) is sprayed to between an inner ring (41) and an outer ring (42) of the upper bearing member (4), thus supplying a misty lubricating oil to an inner ring raceway surface (41a) of the upper bearing member (4). <P>COPYRIGHT: (C)2013,JPO&INPIT |
