| 摘要 |
PURPOSE:To decrease oscillation alreadly propagated to a case by means of a impact dampers provided on side faces by preventing any oscillation caused by mutual meshing of gears to be propagated to the case of the impact dampers provided on a bearing support part CONSTITUTION:Impact dampers 10 are provided inside a case 9 on the bearing parts 5, 8 of an input/output shaft and the side faces of a case 9 in a speed changer provided with at least one pair of gears consisting of a pinion 4 and a gear 2 mutually engaged.
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