PROBLEM TO BE SOLVED: To improve the aligning mechanism for a roller by increasing the space between the roller and a roller shaft. ;SOLUTION: A roller main body 7 having a metallic sleeve 4 on the inner peripheral surface is fitted to the roller shaft 2 via a slide bearing 3. The slide bearing 3 having a resin part 3a on the inner peripheral side and a metal part 3b on the outer peripheral side is force-fitted into and fixed to the sleeve 4.;COPYRIGHT: (C)2001,JPO
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