| 摘要 |
<P>PROBLEM TO BE SOLVED: To restrain the occurrence of a creep by enhancing fitting force between an inner ring and a shaft, while restraining the lengthening of the total length in the axial direction of a bearing. Ž<P>SOLUTION: Mutual divided inner rings 1a and 1b divided into two parts in the circumferential direction are butted, and a fastening member 5 interposing in an abutting piece 10 of butted both divided inner rings 1a and 1b is arranged in a key groove 9 formed on the inner diameter surface side of its butted surfaces 8 and 8. A V-shaped tapered surface 11 is formed on the inner diameter surface side of this fastening member 5, and the respective two tapered surfaces 11 and 11 constituting this inner diameter surface are contacted with an outer diameter surface of the shaft 12. With such a constitution, since strong fitting force can be generated between the shaft 12 and the fastening member 5 by fastening of the fastening member 5, the creep between both is restrained, and the occurrence of damage such as abrasion on the inner diameter surface of the inner rings, can be prevented. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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