In my last blog we went over “pitch” descriptions for spur gears. Engineers being stubborn individuals, it has not been possible to reach a consens...

One of the things I mention when teaching about gears is the long history of great minds who have contributed to our field. Early readers of Ge...

    Every once in a while you need a reminder of why you enjoy your work. This week I got to witness final testing of a...

I have a wonderfully complex gearbox to reverse engineer. It is a critical component for a thriving company that is the only known gearbox of its t...

Plastic gears are everywhere today - throughout your car, at the oceans' lowest depths, in deep space. The question, when is a metal gear a candidate for plastic conversion, can be addressed in three words, i.e. what's the application?

Blogging from an American perspective can sometimes make me forget that the gear industry is active around the world. I get occasional reminders in...

As much as I enjoy a bit of time off it gets boring if I am away from gears for too long. Since I have been in the consulting trade the lull in act...

We are currently experiencing wear on the bull gear on our converter at the steel plant. We want to be able to draw the original gear profile to compare this with the worn tooth before we decide on the next steps. I have attempted this, but there is a correction factor given and I am unsure how to apply this. Could someone give advice on this? Please find attached the PDF’s for the bull gear and the pinion gear. They are old drawings! The wear is on the wheel.

[starbox] We are starting our second year of this blog and are pleased that it was named one of the Top 50 Design and Development Blogs on the Int...

[starbox] A few years ago I presented a paper on reverse engineering at the AGMA Fall Technical Meeting. I heard through the grapevine that some f...