Re: Friction Bearings – How Old Is This Term?
Daniel A. Mitchell
"before the development of the roller journal bearing” ...toggle quoted messageShow quoted text
This type bearing was known to the ROMANS and other early historical civilizations. Their versions were crude to be sure, but they well understood the principals involved. Wooden and stone, and later bronze, balls and rollers were used. Their early purpose was mostly to move or rotate heavy weights. If you want the roots of the terms used for bearings, you’ll need to go back a LONG ways.
It’s not the roller principal that’s important here, but the ability to make PRECISION components capable of running at higher speeds. This developed sometime in the mid-1800s, and was well accomplished by WWI. It was the ability to make precision anti-friction bearings at low cost in large quantities that revolutionized the industry.