Originally Posted by doyll
There is nothing the matter with sleeve bearings. Most internal combustion engines use similar bearings.
I have some TY-140 fans that have been in use for a long long time pretty much running 24/7 .. I think about 6 years now. They are still as quiet as they were to start with.
The crankshaft bearings in a V8 have oil being forced into their
bearing surfaces under high pressure, a fan sleeve bearing
Many internal combustion engines don't use rod bearings, single
cylinder engines and V-twins commonly use needle bearings.
I've also read sleeve bearing fans don't work well in horizontal