AC—oil or no oil?
Five year old Dometic rooftop air has required service by Dometic each year since installed. Seems to need a new control unit each time. Anyway, thought I’d do a little PM like blowing out the fins,...
Forum Discussion
wolfe10 wrote:jkwilson wrote:
Sealed bearings are sealed, so oiling accomplishes little. Oil is the wrong lubricant for a bearing in any case, so once the seal fails the motor’s days are numbered unless you remove the seal and grease the bearing regularly.
Let's make sure we are talking about the "care and feeding" of the same type of bearing/bushing fan motors.
I am not aware of any RV roof A/C's with sealed bearings. All I have worked on have sleeved bushings.
Agree, one with sealed bearings would be an upgrade and would be treated entirely differently. A link to one for an RV roof A/C would be appreciated.
Sealed ball/roller bearings would NOT be an upgrade. Note how all shaft bearings used in a home environment are sleeve bearings for a reason. Ball/roller bearings are noisy beyond belief in a home environment. Look at everything that has a shaft in your home. It is supported with sleeve bearings. Ball/roller bearings make so much noise and vibration that they can not be used in a printing press, as the vibrations shows up in the print.
Richard
