Fan bearing lubricant was Re: WD-40 (again)

Brent Hilpert hilpert at
Sun Apr 17 22:11:09 CDT 2016

On 2016-Apr-17, at 7:28 PM, Noel Chiappa wrote:

> Nope, the cylindrical (outer part of the) bearing is a plain cylinder. But
> looking at it closely, it's probably not copper, so it might be that Oilite
> stuff.

Online images do give a fair idea of the appearance of the surface texture and colour of oilite / porous bronze bearings.
It can generally be readily distinguished from 'pure solid' metal.

I've removed such bearing fittings often enough from equipment for random stock but don't recall whether or not I've seen them in box/muffin fans.

I'd guess that grease may be a poor idea for oilite at least inasmuch as once there is grease in the pores the material will probably never again function the way it was supposed to with oil.

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