| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing preventing the generation of a holder noise by facilitating entrance of a lubricant to a gap between a holder pocket and a ball by constituting the shape of the holder pocket with a globular part and a cylinder part. SOLUTION: A holder is a crown type holder 4 incorporated in a rolling bearing used in an electric accessory auxiliary machinery, such as an alternator. The shape of a pocket face 8 of a pocket 7 of the holer 4 is formed of a composite face consisting of a global part 9 and a cylinder part 10. A plurality of lubricant gathering parts 13 where a lubricant such as grease easily gathers between a holder pocket face 8 and a ball 3, and lubricity between the holder 4 and the ball 3 is improved are formed between the holder pocket face 8 and the ball 3. COPYRIGHT: (C)2005,JPO&NCIPI
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