| 摘要 |
PROBLEM TO BE SOLVED: To provide a long-life in a support position heavily loaded, specially impulsively loaded with a space-saving lightweight structure. SOLUTION: Component members 16 and 34 capable of being driven with rotation are supported with a supporting component member 14 rotatably supported supporting parts 18 and 20, and at least two sliding face pairs 22, 24, 26, 50 and 52 placed before and behind in the longitudinal direction, therebetween at least in one direction 18 and 20.
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