| 摘要 |
PROBLEM TO BE SOLVED: To provide a transporting roller supporting device for a heating furnace capable of improving durability of a bearing rotatably supporting a supporting shaft for supporting a transporting roller. SOLUTION: In this transporting roller supporting device 6, a cooling device 62 is disposed between a side wall 14 of a furnace body and a bearing device 66, and a high-temperature gas toward a bearing device side from a furnace body kept in a positive pressure atmosphere through a through hole 28 is cooled by the cooling device, thus heating of the bearing device by the high-temperature gas can be reduced, and the durability of the bearing device can be improved. Accordingly, fixation of the bearing device can be prevented, and maintenance and checking work to the bearing device can be reduced. COPYRIGHT: (C)2009,JPO&INPIT
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