Friction Roller Variator 02 December 2019, 19:30 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! Input: the motor shaft carrying a roller. Output: the pink wheel of rubber rim. Select angular position of the motor for desired output velocity. Weakness: high wear at contact places « previous mechanism Grinding Wheel Equilibration next mechanism » Cake Decorating Machine load comments Please enable JavaScript to view the comments.