Gear Technology Magazine
www.geartechnology.com/articles/20872-a-logical-procedure-to-determine-initial-gear-size

A Logical Procedure To Determine Initial Gear Size

November 1, 1986
When a gear set is to be designed for a new application, the minimum size gears with the required capacity are desired. These gears must be capable of meeting the power, speed, ratio, life, and reliability requirements.