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RE: More 5400/ KR500 rotor Questions





> -----Original Message-----
> From: owner-AMSAT-BB@AMSAT.Org [mailto:owner-AMSAT-BB@AMSAT.Org]On
> Behalf Of Bronson
> Sent: Thursday, August 03, 2000 6:44 AM
> To: Amsat BB
> Subject: Re: [amsat-bb] More 5400/ KR500 rotor Questions
>
>
>
>
> mmccarty@zianet.com wrote:
>
> >  > >  > > Does anybody know where to buy .3125 replacement BALLS
> >  > >  > > for the Elevation Rotor part of the 5400 ( ie KR-500 )
> >  > >  > > I would like to buy these in STAINLESS STEEL in at least
> >  > >  > > 304 grade preferably 316...
> >  > >  > >
> >  > >  > > This way, with the poor weather-seal on these rotors,
> the balls
> >  > >  > > would not become mini-pulverizers to the pot-metal
> races of the housing and
> >  > >  > > revolving element after rusting...
> >
> > Are the balls .3125 or .3150?  I ordered some 8mm balls from
> > www.bocabearing.com, but they screwed up the order.  Since I have to
> > reorder I could save some money by buying .3125 since the
> fractional inch
> > sizes are cheaper.  Then again the .0025 might not make a
> difference either
> > way.
> >
> > Does anybody have any thoughts on how to best paint the
> housings?  I've had
>
> I used a good quality metel primer from my local hardware store
> and followed the
> directions to the letter.  I used a high speed grinder and a wire
> wheel to clean the
> rough stuff off and accetone to clean the brushed aluminum
> surface of any oils or H2O.
> I then put the metal primer to them without delay.  In this case
> the -them- is a set of
> four aluminum wheels whose outer surface has corroded.  I
> followed up the primer coats
> with a few coats of black primer.  This paint job has survived 1
> and a half winters one
> tire change -all four wheels- and four years total with no signs
> of lifting off the
> surface.
>
> As I learned in the boat yard I worked at, to get myself through
> school, surface
> preperation is the key.  It must be clean and free from oils -
> finger prints as well -
> without corrosion, nicks or surface irregularities.  Surface
> preperation it the trick.
>
> >
> > these rotators for three years, two of which were spent in the salty sea
> > air of Guam.  The housing are pretty corroded and I will be
> bead blasting
> > them to clean them up.  What is the best way to prep and paint the bare
> > aluminum housings to make them last?  I live in the desert now
> so hopefully
> > I won't be doing this again anytime soon.
> >
> > -Mac,KB8YHV
> > Alamogordo, NM


I recall seeing ... but I can't remember where or for what purpose they were
used, teflon balls about this size ... Lowes or Home Depot maybe ... in the
plumbing section, maybe??

John
K0UWT
(who hates the plumbing section of Home Depot)

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