| 摘要 |
PROBLEM TO BE SOLVED: To minimize the vibration of a bush cutter and reduce the weight of a bearing thereof by housing a bearing cylinder in a metal mold, integrally molding the bearing cylinder with an elastic outer cylinder comprising an elastic body such as a rubber or an elastic plastic and preparing a bearing for the driving shaft of the bush cutter. SOLUTION: This bearing for a driving shaft of a bush cutter is composed by housing a cylindrical bearing cylinder comprising a metal, a rigid plastic, etc., and the elastic body such as the rubber or the elastic plastic in the metal mold, making the bearing cylinder concentric with the cylindrical elastic outer cylinder formed of the elastic body, making the bearing cylinder bite into the elastic outer cylinder and integrally molding the elastic outer cylinder with the bearing cylinder.
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