Why not a second thrust bearing a foot or two above the
rotor position?
73, DavidC K1YP
>
> I will have a need to replace the rotator in my 45G tower and am
> wondering if anyone makes/sells a clamp or other kind of gizmo that
> can be put on after the fact (i.e., now that the antenna is already
> constructed) that would provide a secondary lateral support for the
> mast near the (to be removed) rotator. In my case the rotator is
> about 8' below the thrust bearing, and when I would remove the rotator
> there is nothing else to keep the stack above the TB from toppling
> over (save for a rope attached up the mast and held under tension,
> which is now I did this last time). I'm sure I could make such a thing
> but I don't want to spend limited time resources that way and would
> prefer to find something already made (the mast, 2" and tower size,
> 45G, are so common that I hope there is a commercial product sold that
> can be used for this purpose). As the new rotator may locate the mast
> above/below it's current placement, I am thinking that something
> which can be put in place then tightened as needed (or loosened
> as needed) would do the trick.
>
> TIA,
>
> 73 Dave WB0GAZ dgf@netcom.com
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