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Re: [TowerTalk] Battle of the bearings

To: towertalk reflector <towertalk@contesting.com>
Subject: Re: [TowerTalk] Battle of the bearings
From: Mike <nf4l_NO_SPAM@nf4l.com>
Reply-to: nf4l@nf4l.com
Date: Sat, 15 Aug 2009 05:54:28 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Thanks for the ideas and discussion guys. Food for thought.

Can anyone address the 2 points I asked about?

Rohn vs Glenn Martin bearings:
http://www.texastowers.com/rohn_tb.htm
http://www.glenmartin.com/catalog/page195.html

Is a Rohn rotor shelf beefy enough for the bearings?

New question:
How about aluminum masts?
http://www.heightstowers.com/accessories.htm

They also have bearings which look like the same ones at Martin. Any 
experience here?

73, Mike NF4L
> I like to get thoughts/experiences about Rohn TB3 bearings vs. Glenn 
> Martin TB25.
> The antennae will be a 4 element SteppIR and an M2 6M7JHV on 20 feet of 
> 2" chrom-moly.
>
> I plan to use 2 bearings. Can the bearings be mounted on a rotor shelf 
> (25G tower)?
>
> 73, Mike NF4L
>
>
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