| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing for a construction machine which can prevent abrasion and generation of sliding noises caused by thrust load, elongate supplying intervals of lubricating oil, increase width of a bush for increasing strength. SOLUTION: A shaft 4 fixed to a bracket 3 arranged on one of members to be connected to each other is rotatably fitted to a bush 4 fixed to a boss 1 on the other member. Recessions 1a are formed on both surfaces of the boss 1, while the bush 4 is fitted to a hole 1b penetrating a portion between the recessions 1a, 1a. A thrust ring 5 is arranged between an end face of the bush 2 and the bracket 3, while being fitted to the shaft 4. A seal member 8 is attached to the recession 1a of the boss 1. The seal member 8 is abutted against the outer peripheral part of the thrust ring 5, the end face of the bush 2, and/or a bottom 1c of the recession 1a of the boss 1.
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