| 摘要 |
PURPOSE: A rotation apparatus for a sporting tool is provided, which removes worry about corrosion and can be used for a long time without oil supply. CONSTITUTION: A rotation apparatus for the sporting tool includes; a cylindrical housing(210) having the inside diameter of multi-stage; a rotary shaft(220) combined through the housing; and an annular bearing(230) prepared between the housing and rotary shaft. The annular bearing is an oilless bearing. The annular bearing is the monomer casting nylon, urethane, the carbon and Nylube material. A snap ring is installed in the inner end side of the housing. A cap(240) is combined to the end side of the housing. A jamming protrusion is formed in one side of the inner end side and the cap of housing and a hanging groove is formed in the other side.
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