On Feb 22, 5:34*pm, beecrofter wrote:
3 in 1 makes an oil in a blue can labeled for fractional HP motors.
Overlubrication will kill a motor in a hurry by holding all the dirt.
Sometimes you can turn a motor with plain bearings 90 or 180 degrees
in
a belt driven setup and use the part of the bearing that has not yet
worn egg shaped.
One can is only a few Oz, 3 If I recall but consider 1 teaspoon=100
drops.

My big peave is the small tefc motors that are welded shut.

Most bearings in any fans of this kind made for decades now have
sealed bearings that are not designed to be lubed.