上海充通大学 Types of Gear trains Planet Ring gear Output 80t Ring gear Sun gear Planet 20t 3 Arm Sun 40t 02 Input #1 Input #2 Bearing 上游文通大 Types of Gear trains 4M111000//6A planetary train differential train 行星轮系 差动轮系10 Types of Gear trains planetary train 行星轮系 differential train 差动轮系 Types of Gear trains