Maybe a flat washer and a spring washer would stop the bottom bolts coming
loose. Blue loctite will certainly stop them coming loose.
Mark N1UK G3ZZM
----- Original Message -----
From: "Blake M" <n4gi@tampabay.rr.com>
To: <towertalk@contesting.com>
Sent: Sunday, 26 August, 2007 1:35 PM
Subject: Re: [TowerTalk] Fw: Rohn 45 Question
> The bottom bolts on a Ham IV I had would work loose every few months when
> I
> had no load on it (I bought into the thrustbearing-takes-the-weight thing
> when I was new...). After I placed the full load of antennas and mast on
> it, this problem stopped.
>
> Rotors have HUNDREDS of bearings in them. Most thrust bearings I've seen
> only have 10-20.... I'm no expert in physics, but where to put all the
> weight seems like an easy decision to me.
>
> 73,
> Blake N4GI
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of K7LXC@aol.com
>
>
> Roger, thank you for cutting to the chase. You are entirely correct
> but
>
> hardly anyone is aware of this and only the Orion even mentions it in
> their
>
> owner's manual. While I haven't seen any catastrophic failure trends with
> "floating" rotators, they are all designed to have some preload to seat
> the
>
> bearings in their races.
>
> Cheers,
> Steve K7LXC
> TOWER TECH -
> Professional tower services for hams
>
>
>
>
>
>
>
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