Most of the gearboxes I have been involved with use single helical gears. Its excellent power capacity per mesh makes it the default system for man...

We cannot leave our lesson about tooth depths without covering bevel gears. There is a tendency to think of bevels and worms as being best left to ...

A discussion of ISO and AGMA standards for gears, shafts and bearings, and the art of designing a gearbox that meets your requirements.

How did that over pin calculation work out? My congratulations if you managed to work your way through it without tearing your hair out. Guess what...

No one becomes a gear expert overnight. You might be abruptly assigned the title by your employer, but it takes some time before you can really ful...

At the risk of permanently cementing my curmudgeon status, today’s blog is a defense of scut work as a necessary tool for training young engineers....

A question came to me recently in an e-mail that I could not answer from memory. It seemed like something I had read in a book once so the long-del...

I rambled on about herringbone gear in my last posting but still have more to share on these once commonplace gears. Today we’ll cover the use of c...

A reader asks about ion-nitride finished shafts and the proper friction coefficient to be used for calculations.