The article discusses the different types of gears available along with gear parameters and different applications.
engineer-mechanical:inventor-gears - Jeffery J Jensen Wiki
Internal & External Spur Gears - Precision Gears, Inc. - radiozona
Internal & External Spur Gears - Precision Gears, Inc. - radiozona
Types of Gears: Design, Types, Applications, and Materials
Gear Technology magazine, The Journal of Gear Manufacturing : The
Different types of gears. stock vector. Illustration of element
Helical Gears - Geometry of helical gears and gear meshes
Gearbox Design Fundamentals for Industrial Applications Webinar
Different types of gears. stock vector. Illustration of element