On Sat, 23 Jul 2005 20:52:36 GMT, kony <spam@spam.com> wrote:

> I have exactly the opposite experience, have lubed MANY
> ball-bearing fans with several viscosities of oil, grease,
> even the two mixed together. It almost never benefits them
> as by the time a ball-bearing fan is making noise the
> bearings are shot and lube doesn't make them round again.
> Thin lube usually makes them significantly louder.
>
> Which specific fans have you lubed and do you know who made
> the bearings? Among those I've lubed include Superred, Yate
> Loon, NMB, old Panaflo (back when they made ball-bearing
> PC-sized fans), Sanyo (and probably others, I wasn't trying
> to keep track at the time).

I don't make records of all the fans. When they start making
noise after some year I lube them and then they are quite for
many years. If I don't lube them I have to replace them.
Now I lube them once a year to prevent noise.