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Re: [TowerTalk] Tower mast..

To: "JC Smith" <>,"'Merlin-7 KI4ILB'" <>, <>
Subject: Re: [TowerTalk] Tower mast..
From: Jim Lux <>
Date: Mon, 18 Sep 2006 20:47:13 -0700
List-post: <>
At 05:15 PM 9/18/2006, JC Smith wrote:
>Hi Joe,
>If you really want to run a mast all the way to the bottom of the tower I'd
>go find a used thrust bearing (the kind that's designed to support both
>axial and radial loads) at the junkyard for it to set on and use a rotor
>shelf, which you can use later when you get a real rotor, to secure it to
>the bottom of the tower.  That steel ball sounds a little hokey to me.
>You'll need to design some sort of decent brake to keep it from wrapping up
>your coax.  Why not just buy a decent rotor?  Can't add too much to the cost
>of the project when you figure in all that extended mast stuff.

Old car rear axle and differential takes a pretty good thrust load. 
Welding to the brake drum is a bit of a challenge, but usually, you 
can modify a pipe flange or similar by drilling it for the lug nut pattern.


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