| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device without need of improving work precision more than necessary by restricting eccentricity of an inner ring to a shaft. SOLUTION: This bearing device 10 comprises a first bearing part 15 and a second bearing part 25 coaxially disposed with the shaft 12. An inner race 13 for the first bearing part 15 is formed in a shaft 12. An inner race 27 for the second bearing part 25 is formed in an inner ring 26 engaged with the shaft 12. A coil spring 35 is provided between the first bearing part 15 and the second bearing part 25 to provide preload. The bearing device 10 is composed in such a way that an engagement position 33 of the shaft 12 with the inner ring 26 is at a corresponding position to a diametric plane passing an intersection 47 of an axial line 45 of the shaft 12 with an extended line 46 at a contact angleαin the second bearing part 25. COPYRIGHT: (C)2004,JPO
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