Hi guys,
I would like to explore the collective knowledge regarding oilite bearings.

My electric floor fan is a ROK 450mm 3 speed 3 blade model about 2 years old.
When this fan is switched on it sometimes emits a shuddering grinding noise which says to me- Ok! bearing problem.

I have disassembled the fan and found no visible damage to bearings or shaft and lightly oiled it, assembled it and ran it for a while but the noise returned.
I have checked the other obvious things like the balance of the fan, checked for bent blades and cleaned it

Also we have a free flying cockateil- the flying fluff bomb who generates large quantities of fluff and dust, some of which ends up in the internals of the fan.
Would cockateil fluff and dust affect the bearings. I might add we have 2 other exact same fans in the house which the bird is not around much and they are fine.

Since the noise keeps coming back I drilled a hole in the back cover cap that encapsuates the rear bearing. This hole is just big enough to accept the straw on a WD-40 lubricant spray can. A squirt of this and the fan is good for a week. What do you say, can an oilite bearing lose its oil?

Thanks

Grahame


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