One of the scariest things a gear designer can face is a blank sheet of paper. This is why most of our products are “derivative” rather than “revol...

You kids are spoiled! Back in my day it took at least a day to see the results of computer modeling, longer if the courier dropped the box of input...

Hulet self-unloader image courtesy of ASME. Interesting things happen when you start using “non-standard” gear geometry. As early as th...

There is an old saying that if the only tool you have is a hammer, everything looks like a nail. Imagine that you are tasked by your employer to de...

Our international readers are no doubt chuckling over this silly, American “long addendum” terminology. The “civilized world” has long relied on a ...

In my last posting I advised designers to avoid relying on “rules of thumb” or computer coding when confronted with tough decisions. This admonitio...

The initial motivation for changing outside diameters was the avoidance of undercutting. Designers, engineers, and theoreticians quickly discovered...

Most of you are excused for missing the attempted humor in the above headline. So, I will violate the first rule of comedy and explain the joke. An...

Designing gears is somewhat of a mathematical puzzle. You have lots of interconnected factors to play with in hopes of finding the “best” overall s...