BEARING DEVICE

PROBLEM TO BE SOLVED: To provide a bearing device which is improved in workability when worn brush and worn thrust plate are exchanged for new ones. SOLUTION: According to the structure of the bearing device, the bush 17 is formed separately from the thrust plate 20. The bush 17 is mounted in an arm boss 12 by being press-fitted into an internal peripheral side of a sleeve 16 press-fitted into a boss cylinder body 14 of an arm boss 12, and the thrust plate 20 is mounted on the arm boss 12 by being press-fitted onto an external peripheral side of a projection 16B of the sleeve 16. Thus when the bush 17 is worn out, for instance, the bush 17 alone can be exchanged for a new one, while when the thrust plate 20 is worn out, the thrust plate 20 alone can be exchanged for a new one, to thereby improve the workability at the time of exchanging the worn bush 17 and the thrust plate 20. COPYRIGHT: (C)2008,JPO&INPIT