05-19-2014, 05:37 AM
If I recall correctly, always in doubt, I asked someone at Newell about this and the answer was that in their experience greased bearings were more reliable given the long periods of parking by motorhomes and required less checking by the driver. If a seal leaks and is unnoticed then the oil goes and bearing failure happens fast. Given the improvements in seal technology I suspect seal reliability is no longer the concern it was.
Jon Kabbe
1993 coach 337 with Civic towed