| 摘要 |
PURPOSE:To easily restore a function of a cylindrical rubber by providing an urethane rubber cylinder mounted on a tooth root with an urethane square pillar having a polygonal section of a diagonal size larger than the inside diameter of the cylinder inserted therein in such a manner that the head portion of the pillar is projected. CONSTITUTION:A square pillar rubber 7 is formed of urethane rubber, which has a square section of a diagonal size S larger by 6-15% than the inside diameter d3 of a cylindrical rubber 6 formed of damaged urethane rubber and a height (h). This square pillar rubber is inserted inside of the cylindrical rubber 6 in such a manner as to project over a sprocket tooth root by delta0. |
