Hadn't thought of that, but it's certainly a good reason. I've always assumed
it's because, while the bearing and race
surfaces are hardened, the hardening process may only be a few microns thick.
Any metal-to-metal contact could
compromise that hardened surface, and cause premature failure of the bearing
('accelerated wear').
Bob
On 9/3/2013 9:19 AM, Adventure Limousine wrote:
> That would be a safety issue. Long time ago a friend of mine was working on
> his racing go-cart and spinning a dry
> bearing with the air hose. It blew apart and he lost his left eye. It is
> now made of glass. I learned my lesson
> from him.
> Safety First!!!
> Rusty Lesher
> Adventure Limousine
> 484-638-2110
>
> ------------------------------------------------------------------------------------------------------------------------
>
>
> I've heard this for years and don't do it. But it is blind acceptance of the
> advise. I've never found an acceptable explanation as to why. Anybody have
> one?
>
> Bob
>
>
> On 9/3/2013 10:19 AM, Bob Spidell wrote:
> >
> >
> > Probably not necessary to mention to this crowd, but it's not a good idea to
> > spin (rotate) dry bearings (i.e. using a blast of air).
> >
> > Bob
> _______________________________________________
>
>
--
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Bob Spidell San Jose, CA bspidell@comcast.net
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