| 摘要 |
A portable power tool having a rotating output shaft (13) journalled in two axially spaced bearings (15,16) and having at its forward end (13a) a working implement mounting device (19) and an anti-vibration balancing unit (20), wherein an auxiliary balancer (26) is provided at the rear end (13b) of the output shaft (13) for dynamic balancing of the rotating parts including a working implement (17) mounted on the output shaft (13) at operation of the power tool. <IMAGE> |
