S112012 Angular Transmission Error of Hourglass Worm Gear with hardened and Ground Wheel

Abstract

The development of new hourglass worm gear set which wheel material was hardened steel and its surface was ground by CBN deposited grinding wheel was challenged. The result performance of load carrying capacity and efficiency were not so good as expected, but the performance of the angular transmission error was astonishingly well. And the reason was searched and reported here.