| 摘要 |
PROBLEM TO BE SOLVED: To provide a wear-resistant and heat-resistant conveyor chain capable of prolonging the lifetime of the chain by considerably suppressing chain wear elongation caused by uneven wear between the inner circumferential surface of a roller and the outer circumferential surface of a bush even under a heat-resistant working environment, and ensuring the silent chain operating environment by reducing the sliding noise between the inner circumferential surface of the roller and the outer circumferential surface of the bush. SOLUTION: The wear-resistant and heat-resistant conveyor chain 100 comprises a heat-resistant roller 130 to be rotatably housed over a bush 120 press-fitted to inner plates 110, and an outer plate 150 for connecting the inner plate 110 in the longitudinal direction of the chain by press-fitting a connection pin 140 which is rotatably inserted in the bush 120. A wear-resistant and heat-resistant sleeve-shaped spacer 160 which is protruded from a roller end face of the heat-resistant roller 130 toward the pair of right and left inner plates 110 to avoid any sliding contact of the roller end face of the heat-resistant roller 130 with inner surfaces of the inner plates 110 is coaxially provided between the heat-resistant roller 130 and the bush 120. COPYRIGHT: (C)2008,JPO&INPIT
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