| 摘要 |
A power tool (11A; 11B) may include a rotational force generating device (21) and a rotational driven shaft (36; 36B; 36C) coupled to a rotational drive shaft (24) of the rotational force generating device (21) via a transmission mechanism (30), so that the rotation of the rotational drive shaft (24) is transmitted to the rotational driven shaft (36; 36B; 36C) via the transmission mechanism (30). One or each of the rotational drive shaft (24) and the rotational driven shaft (36; 36B; 36C) is rotatably supported by at least three bearings (37, 381, 382; 37B, 381B, 382B; 371C, 372C, 381C, 382C). |
