Problem 1: A standard gear with 20 teeth has a pressure angle of 20 degrees. The addendum diameter is measured to be 2.2 in. Determine: a) The diametral pitch P. b)

The circular pitch p... c) The base circle radius r. d) The base pitch p.. e) The tooth thickness on the pitch circle t. f) The tooth thickness on the base circle 1. g) The tooth thickness on the addendum circle, t