Spur Gear Drive 30 May 2018, 21:00 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! Each gear (screw) has only one tooth. Gear face width must be larger than tooth axial pitch. « previous mechanism Six-Bar Linkage for Tracing Straight Line next mechanism » Rest load comments Please enable JavaScript to view the comments.