Cleaning method and cleaning device for fluid dynamic bearings component

Abstract

The present invention provides a method and device for cleaning the oxide layer created on the bearing surface of a fluid dynamic bearing by the electrochemical machining of pressure generating grooves onto the bearing surface, wherein the method involves spraying a high-pressure liquid jet onto the bearing surface and the cleaning device is an apparatus for spraying a high-pressure liquid jet onto the bearing surface.

1 . A device for cleaning fluid dynamic bearings comprising: 
 a means for holding a work piece having a bearing surface;    a means for pressurizing a liquid; and    a means for directing said pressurized liquid onto the bearing surface.    
     
     
         2 . A device for cleaning fluid dynamic bearings comprising: 
 a jig;    a conveyance device;    a cleaning part configured to spray a pressurized liquid onto said fluid dynamic    bearings; and    a draining part.    
     
     
         3 . A device according to  claim 2  further comprising: 
 an input part; and    a discharge part.    
     
     
         4 . A device for cleaning fluid dynamic bearings comprising: 
 a jig;    a conveyance device;    a flat cleaning part configured to spray a pressurized liquid jet onto a flat fluid dynamic bearing surface; and an    an internal cleaning part configured to spray a pressurized liquid jet onto a cylindrical bearing surface.    
     
     
         5 . A device according to  claim 4  further comprising: 
 a draining part.