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Gear Talk With Chuck

What Happened to FEA?

[starbox] Thinking back on my experiences on the Helical Gear Rating Committee, I am a bit shocked at what hasn’t happened. As AGMA 218 was being finalized in 1979 there

Gear Talk With Chuck

Where Do Allowable Stresses Come From?

[starbox] One of the most important aspects of a gear rating standard is the allowable stress charts. For spur and helical gears we want to calculate durability and strength ratings

Gear Talk With Chuck

Great Moments in Gear Rating

[starbox] By now readers of this Blog are aware of my interest in gear trade history. The more I learn about how we got to this point in our understanding

Gear Talk With Chuck

Action Items for the Gear Trade

[starbox] Recently I learned that it took over 20 years for the gear industry to agree on its first “standard” tooth form — and that was after spending 25 years

Gear Talk With Chuck

Limited Opportunities for One-Trick Ponies

[starbox] When you work as an engineer for smaller companies you get to wear a lot of hats. Whether it was an emergency structural repair — snow causing a roof

Gear Talk With Chuck

Lost Technology

[starbox] Writing this Fall Technical Meeting paper has me digging through old files for references I am certain are in there some where. Of course I am finding many things

Gear Talk With Chuck

The Beginning of Wisdom

[starbox] An old proverb posits that “The beginning of wisdom is calling things by their proper name.” In my previous posting I brought up the need to identify the meaning

Gear Talk With Chuck

Frequently Asked Questions (and Other TLA or FLA)

[starbox] The advent of texting naturally leads to a desire for reduced typing. I like websites that have a “Frequently Asked Questions (FAQ) tab as it shows an interest in

Gear Talk With Chuck

Hunting for an Argument

[starbox] One of the first things I learned about gears was the importance of having a “hunting tooth” combination. This was not open to discussion. It was carved in stone

Gear Talk With Chuck

What Did They Know and When Did They Know It?

[starbox] No, I am not launching a criminal investigation. The title of this posting summarizes my ongoing study of the history of gear ratings. Most of you are aware that