Patent No. 00235664.3
It consists of Friction Type Coaxial Torque Arm Planetary Stepless Speed Variator and Cycloidal Reducer and Speed regulation display cover. Comprehensive performance advantages of two models to play with each other to make up for the performance of each single defect, which form a more perfect performance of speed variator. It can load the starting speed and change the speed when is loading, and it is used for the workplace that running speed required for frequently adjust, can be widely used in various automatic production line industries and various testing equipment.