If a low viscosity oil like a SAE 10 is used it's not really a problem.
Try it some time. Put an old fan motor or some open frame capacitor start/run type of motor in a coffee can of light oil and let it rip.
Unless it's a pathetically low powered shaded pole type it won't have any problems at all. To be honest try it with a low duty cycle motor like one from a garage door opener in a larger bucket of oil. The thing will run continuous duty without a problem as long as it can get the oil to circulate around the windings and core.
Try it some time. Put an old fan motor or some open frame capacitor start/run type of motor in a coffee can of light oil and let it rip.
Unless it's a pathetically low powered shaded pole type it won't have any problems at all. To be honest try it with a low duty cycle motor like one from a garage door opener in a larger bucket of oil. The thing will run continuous duty without a problem as long as it can get the oil to circulate around the windings and core.