A reader asks: I'd like to know about the different approaches and factors considered while determining the value of Ka in regards to the DIN 3990 and AGMA standards.

Cleveland has always seemed a rather odd location for the Rock and Roll Hall of Fame. Hollywood, on the other hand, is the logical place for that W...

Another giant of the gear industry — Darle W. Dudley (1917-2003) — is still influencing new engineers today through his writings. The very first ge...

In the last semester of my senior year of mechanical engineering, I recall having a discussion with my study group friends about the purpose of our...

Origin Stories Needed

How did you get started in the gear trade? We are interested in sharing your “origin story” as a way of helping hum...

While there have been big changes on the design side of the gear trade, they are overshadowed by the improvements in the manufacturing processes. F...