Quote:
Originally posted by Raptor@Feb 12 2004, 10:06 PM
Actually, this isn't something that is just me guessing, it is proven theory. Decreasing diameter does reduce bearing surface speed. Consider it like this, in the same revolution, a larger bearing journal is going to have a larger circumfrence to cover which means higher speed on the bearing surface causing more friction at higher RPM.
As far as squeezing oil out, there would be no issues if the correct oil viscosity, preasure and bearing clearances are used.
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I agree with the speed being lower, that is simple physics. I just don't think it outweighs the smaller contact patch. I too agree that it would be negligable with this small change.
The nitride thickness on a DSM is supposed to be .012", so turning one .010" is asking for trouble if you ask me.
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