| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ball bearing including a cage to which a lubricating part formed of a solid lubricant is fitted, having enough mechanical strength, and attaining favorable lubricating performance even when being applied to a large-sized ball bearing or an angular ball bearing with a narrow ball interval. Ž<P>SOLUTION: A separator (a cage) 4 is formed of a sheet metal. A ring-like lubricating part 5 formed of a solid lubricant is fitted to a circular hole 41 of the separator 4. Balls 3 are rotatably disposed inside the ring-like lubricating part 5. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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