Cam gear GIF

[Frank S]

Non circular gears are primarily used for attracting attention creating the mesmerizing effect in most designs. However there are a few real life applications in which the non circular gears play a large part in the mechanical performance of machines, shaft velocities can increased and decreased as the pitch diameter varies without the need for changing the actual gear ratio this action in turn vastly changes the torque output as well.. I seam to remember some ag equipment that was antique when I was a teen that had non circular gearing one in-particular was an animal drawn single row planter which through the arrangement of goofy gears caused the seeds to be placed at odd intervals the spacing reminded me of a Beethoven symphony dit,dit,dit, daaa, Also we had a Bermuda grass spriger that had these so the concept while not at all that common has been around for eons