Re: [TowerTalk] Rotator Choice for Larger Yagi

[Patrick Greenlee <patrick_g@windstream.net>]

eBay has them starting at...


     Fiat 124 Spider 2000 131 Drive Shaft Flex Flexible Joint Doughnut
     Disc 4516801
     
<http://www.ebay.com/itm/Fiat-124-Spider-2000-131-Drive-Shaft-Flex-Flexible-Joint-Doughnut-Disc-4516801-/152074720100?hash=item23685c1364:g:J8IAAOSwxN5WT9Kj&vxp=mtr>

 * $15.25



On 5/3/2016 9:12 PM, Stein-Roar Brobakken Rag LB3RE wrote:
> Hello
>
> Maybe you think of drive shaft pad/joints ?
>
> http://www.ebay.com/itm/Drive-Shaft-Coupler-fits-2005-2011-Dodge-Charger-Magnum-Challenger-DORM-/231589278784?hash=item35ebcbf440:g:a4kAAOSw9N1VqAfp&vxp=mtr
>
> http://www.ebay.com/itm/NEW-Flexible-drive-shaft-joint-for-VAUXHALL-Opel-Frontera-/231932309467?hash=item36003e2fdb:g:zM8AAOxyBvZTQYN-&vxp=mtr
>
> This can be place above the rotor and have steel plate seperatly..
>
> This ones will absorbe energy/twisting
>
> 73s LB3RE Rag
>
>
> Den ons, mai 4, 2016, 04:05 skrev Jerry Gardner:
> > Interesting, Not being a "car guy" I've never heard of flex discs. Do you
> > have any more info, perhaps a few links to websites describing them and
> > how
> > they can be used as part of an antenna/rotator system?
> >
> > 73,
> > Jerry
> >
> > On Tue, May 3, 2016 at 6:48 PM, Bob K6UJ <k6uj@pacbell.net> wrote:
> >
> > > Someone here on Tower Talk in the past mentioned adapting an automotive
> > > drive shaft
> > > flex disc in the mast right above the rotor.  Said he had zero rotor
> > > issues after installing.
> > > As you probably already know the flex disc coupling consists of two
> > > mating
> > > flanges attached to a shaft with the flex disc sandwiched in between.
> > > The
> > > flex disc is a synthetic rubber compound.   The automotive flex discs
> > > are
> > > designed to absorb the torsional shock from hard acceleration and
> > > deceleration.   They are well suited to our application and will handle
> > > our
> > > torque loads easily.  I will be installing my new OR2800 this summer and
> > > plan to
> > > install an automotive flex disc coupling above the rotor.  Not that
> > > difficult to do and I would rather replace the rubber disc periodically
> > > when it shows signs of deterioration rather than repair/replace the
> > > rotor.
> > > Much cheaper
> > > too  :-)
> > >
> > >
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> >
> >
> >
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> Best Regards Stein-Roar "Rag"
>
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