[JFP in PA]

Originally Posted by ksjohn

One other thought:

One thing that attracted me to the EPS bearing system was ability to modify the oil pump drive shaft and the IMS so that oil would be continuously pumped to the bearing. I know this oil source is not cooled or filtered which is ideal, but still it is a continuous oil supply.

Why could you not combine this feature with a simple, non-sealed single row ball bearing? A ball bearing may be a better solution than a roller bearing and the cost could be minimal depending on the source of the bearing.

I have never seen this option discussed anywhere.

Perhaps because the oil pump drives in these engine's are already notoriously weak before you grind a slot in them, punching a hole with a hammer in the pump end shaft seal may not be the best way to control oil flow, and running a flooded IMS shaft may not be the best approach to extending bearing life.