| 摘要 |
<P>PROBLEM TO BE SOLVED: To rapidly supply lubricating oil to a bearing space in an outside lubricant supply type ball bearing with the usage of a crown-shaped cage. <P>SOLUTION: A back surface side opposite from a side where a pocket 5c of the crown-shaped cage 5 is provided is directed to a seal side of the bearing space sealed by a seal member 6, and the lubricating oil A is supplied to the bearing space from a non-seal side opposite from the seal side, and thereby, the lubricating oil A supplied to the bearing space from the non-seal side is directly adhered to a ball 4 stored in the pocket 5c without being blocked by an annular part 5a of the crown-shaped cage 5, and the lubricating oil A is rapidly supplied to the bearing space. <P>COPYRIGHT: (C)2007,JPO&INPIT |
