[TowerTalk] Roof top towers

[Merv Schweigert]

If you ever looked at the races in a used hy gain rotor you will
see the action of steel balls on aluminum races..  all I have
taken apart are "pitted", some to unusuable condition.. as Bill
states not good engineering practice.. unless you are in the
business of disposable replaceable merchandise..
Merv K9FD

> > Anyone who would design a bearing to have hardened steel balls in a soft
> > aluminum race needs to give his Engineering degree back as being
> > misrepresentation.
> >
> > Bill- W4BSG
> >
> But there must be a reason.  Most of the rotors in use today are built
that
> way and so are all the so-called outdoor thrust bearings I have seen.
> Unless, some of those steel balls aren't so hard and some of those soft
> aluminum races aren't so soft.  The TB3 is supposed to run dry and I never
> heard anyone ever say they wore one out.  I suspect that there is initial
> wear and that acts as a sort of dry lubricant and slows further wear.  But
> then, I am no engineer.
>
> 73
> Greg K9ZM
>
> Arkansas Humor: "Before takin this here mail-order course, I could't even
> writ injunear, an now I are one."
>
>
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