Belt Planetary Drive 17 November 2016, 20:00 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! Two pulleys have the same diameter. The green pulley orientation (red arrow) does not change during motion. « previous mechanism Novikov Gearing next mechanism » Slider-Crank Mechanism With Added Double Crank load comments Please enable JavaScript to view the comments.