图 上海久通大学 outline ▣Types of Gear trains Velocity ratio for fix-axis gear train Velocity ratio for epicyclic gear train 圆上泽支大学 Types of Gear trains Gear trains Gear shaft supporter Fixed Epicyclic Complex 定轴轮系 周转轮系 复合轮系 Non-reverted Simple gear Compound train gear train Reverted 22 outline  Types of Gear trains  Velocity ratio for fix-axis gear train  Velocity ratio for epicyclic gear train Types of Gear trains Gear trains Fixed 定轴轮系 Compound gear train Simple gear train Epicyclic 周转轮系 Complex 复合轮系 Gear shaft supporter Non-reverted Reverted