| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly efficient lubricating structure of a rolling bearing capable of efficiently supplying lubricating oil supplied to the inside of the rolling bearing which rotatably supports a rotary shaft. SOLUTION: At an end of at least one of an inner peripheral ring 14 and an outer peripheral ring 12 sandwiching a first gap H1 of a deep groove ball bearing 10, by providing a plurality of annular protrusions 24 provided to protrude in the axial direction at predetermined intervals, the lubricating oil can be forcibly supplied by the annular protrusions 24. Further, by providing the annular protrusions 24 on at least one of the inner peripheral ring 14 and the outer peripheral ring 12, the rotation speed difference is higher than in the conventional structure using the rotation speed difference between the inner peripheral ring 14 and a cage 18, and the outer peripheral ring 12 and the cage 18, a lubricating agent is more efficiently supplied than conventionally. COPYRIGHT: (C)2008,JPO&INPIT
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