This is my opinion, I do not know if the pot metal or the bass would work
better. I used the roller bearing on my standard D. Some pot metal holds up
very well. The diamond B, diamond C and the late large dome tops are good
examples of this. I have had some people think the early diamond C with the
brass tube had a brass top when the diamond C never had a brass top. I have
had two people tell me their late large dome tops were brass when only the
first flat top O had a brass top. Victor was the same way the early ortho
reproducers mostly swell while the later ones made for the suitcase machines
can be mostly easily taken apart. Impurities cause pot metal to swell and even
on the most swollen large tops, the early dome top is the works, the structural
integrity is normally good even with the surface distortions. If the pot
metal works why replace it? I had the bearing on my triumph nickel plated so
it looks nice, I do not like the look of the brass.
Steve> CC: phono-l@oldcrank.org
> From: b...@taney.com
> Date: Sat, 9 Jul 2011 09:24:12 -0500
> To: phono-l@oldcrank.org
> Subject: Re: [Phono-L] FW: Frozen mandrel bearing
>
> Is there any reason you would ever leave a potmetal bearing in one of these
> machines? I have always had it replaced whether it needed it or not figuring
> that it is easier to do when its not siezed and it is an inevitablity so why
> not replace it with a brass one... Am I missing something?
>
> Sent from my iPhone
>
> On Jul 8, 2011, at 11:42 PM, Rich <rich-m...@octoxol.com> wrote:
>
> > Potmetal continues to grow until it just crumbles. Reaming is a temporary
> > fix. As someone else pointed out the bearing has probably been lubed with 3
> > in 1 in the red can which is a pure mineral oil with no rust or oxidation
> > inhibitors and just soaking with Kroil will usually get it going again. Not
> > all potmetal of that period is defective. Oxidized 3 in 1 is a powerful
> > adhesive though.
> >
> > On 07/08/2011 08:31 PM, Steven Medved wrote:
> >>
> >>
> >>
> >>
> >> If I remember correctly the home and triumph pot metal bearings are thick,
> >> I would think if the shaft could be removed the bearing could be reamed
> >> out to the correct size and it could be used. Has anyone ever tried this?
> >> Steve
> >> _______________________________________________
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> >> http://phono-l.oldcrank.org
> >>
> >>
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