| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing preventing generation of mist by a lubricant and scattering of a thickener in the rolling bearing, preventing a problem of deterioration in the quality of vacuum and pressure fluctuation on a vacuum side, maintaining satisfactory lubrication for a long period and allowing installation of the rolling bearing with high dimensional accuracy with a simple structure. <P>SOLUTION: The rolling bearing is used in a power transmission device for transmitting power such as turning force between a device internal side and a device external side. In the rolling bearing, in a magnetic circuit for holding lubricative magnetic fluid for lubricating lubrication portions of the rolling bearing in the lubrication portions, a spacer is provided having a recess holding a magnet. <P>COPYRIGHT: (C)2011,JPO&INPIT |
