| 摘要 |
A rotary power tool (1), such as an oil pulse driver, includes: a motor (10), a pinion (57) rotated by the motor (10), planet gears (74) that mesh with the pinion (57), an internal gear (72) that meshes with the planet gears (74) and an output part (14) that is rotationally driven by the planet gears (74) and disposed frontward of the planet gears (74). The internal gear (72) comprises an internal gear part (72c) and an internal gear retaining part (72a) holding the internal gear part (72c). A bearing (97) is disposed frontward of the internal gear part (72c), and is held at a front part (72d) of the internal gear retaining part (72a). |
