| 摘要 |
PROBLEM TO BE SOLVED: To provide a durable chain for conveyance capable of tremendously reducing a chain manufacturing load while avoiding deterioration of plate strength and increase of the number of chain parts, capable of preventing leakage of lubricant to the outside and intrusion of external dust during operation of the chain, and capable of exhibiting an excellent lubricating oil lubricant gradual discharging property of a bush, and capable of supplying the lubricating oil to a space between an inner peripheral surface of a roller and an outer peripheral surface of the bush for a long time. SOLUTION: The durable chain 100 for conveyance is constituted by an inner plate 110, the bush 120, the roller 130, a connecting pin 140 and an outer plate 150, and both ends of the roller 130 are surrounded and supported respectively by a roller bearing annular recession 111 in the off-set state where an inner side surface of the inner plate 110 is indented and is bulged to an outer side surface. COPYRIGHT: (C)2009,JPO&INPIT
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