| 摘要 |
The planetary gear has a wheel hub (1) which is made of several axles (7) through which the drive of the wheel of the hybrid bicycle is performed through a planet carrier (2). A sun gear (3) is mounted on the wheel hub rotatably, in which a gear mechanism is arranged directly or indirectly and is enclosed by the wheel hub through ball bearings. A sun gear holder (4) is rotatably mounted on an outer ring (12), while the planet carrier is rotatably connected with the to-be-driven wheel of the wheel hub. |
