[TowerTalk] Ham -IV

[John Tait]

Hi Clive...

----- Original Message -----
Subject: Re: [TowerTalk] Ham -IV


> Hi John again,
> I have had a thought, do you remember how much over size those bearing
> were?. Just a few 1/1000"?. I'm thinking that I should do that here.

       Yes... Basically, they were just a few thou' more than the original,
but big enough to be a good "fill" for the raceway. I suppose I ended up
with about twice as many bearings as the original, because the metal bearing
holder was not in use any more. This means that there is less "slop" as
there is twice as much support as originally, and correspondingly less wear
as a result..

   Good luck in your efforts es 73
             de
         John  EI7BA

P.S.  I think I'll copy this to the reflector...Maybe someone else may find
the info usefull..


> 73 Clive
> ----- Original Message -----
> From: "John Tait" <bravo@iol.ie>
> To: "Clive GM3POI" <clive@gm3poi.prestel.co.uk>
> Sent: Friday, April 20, 2001 8:04 PM
> Subject: Re: [TowerTalk] Ham -IV
>
>
> > Hello Clive...
> >
> > Subject: [TowerTalk] Ham -IV
> >
> >      Nothing to do with your question....And probably to be filed under
> > "useless information".... BUT!  Some time a go I had a HAM IV which had
> seen
> > better days...to say the least.!   The Ball bearings and the ball
raceway were
> > badly worn and the metal bearing holder was falling to bits..
> >    Anyway, I threw away the piece of metal thinggy that holds the
> > ballbearings, and I got a couple of dozen LARGER bearings than the
> > originals. The extra sized ballbearings compensated for the worn
raceway,
> > and because I had now many MORE bearings than originally, the load was
> > spread more between the bearings..
> >    RESULT...!  A nice TIGHT like NEW rotator that is STILL RUNNING.. I
> > originally bought it SECOND HAND in 1975..!!!!!
> >
> >       ...Must be my Scottish blood..!!!!
> >              73 to u es urs
> >                    de
> >                 John Tait      EI7BA   http://www.iol.ie/~bravo/
> >
> >
> >
> >
> > > Can anybody confirm the ball bearing diameter for a Ham IV rotator.
> > > I suspect its 3/8" but would like confirmation.  Thanks Clive GM3POI
> > >
> > >
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