Re: Friction Bearings – How Old Is This Term?

D. Scott Chatfield

But were they using "friction bearing" to describe a type of journal bearing or were they using it correctly to describe one type of side plate bearing?

"Friction bearing" is an oxymoron since a bearing by definition is an anti-friction device.  

As has been pointed out to me in the past, plain journal bearings are a type of sleeve bearing, and the "solid" journal bearing is a variant developed later (1940s?), so not all plain bearings are solid bearings.  But before the development of the roller journal bearing there was really no reason to call journal bearings anything other than just journal bearings.  The use of the inaccurate and unnecessary term "friction bearing" had to start somewhere. 

Scott Chatfield

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