| 摘要 |
PURPOSE:To attain the lightness of weight while to improve the accuracy of dimensions, by forming a shaft end by a synthetic resin material with thermal deformation temperature of 80 deg. or more and bending elastic modulus of 200kg/mm<2> or more further with an inorganic filling material addition amount of 50wt.% or less. CONSTITUTION:A roller main unit 3 forms its end part 1 of a shaft, supported to a bearing, by a synthetic resin material with thermal deformation temperature of 80 deg. or more and bending elastic modulus of 200kg/mm<2> or more further with an inorganic filling material addition amount of 50 wt.% or less. A conveying roller is formed by adhesivbly attaching the roller main unit 3 to the shaft end part 1 by an adhesive agent 2. As the synthetic resin material, thermo-plastic resin of reinforced polypropylene, nylon 6, polycarbonate, polyacetal, etc., and/or thermo-setting resin of phenol system resin, melamine system resin, etc., are used. While in the above described resin, glass fiber, carbon fiber, cellulose fiber, etc., and/or talc, mica, etc., of non-fiber system are mixed as the reinforcing material by 50wt.% or less. In this way, the unit attains the lightness of weight while improving the accuracy of dimensions.
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