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.
73 - JC, K0HPS
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of Merlin-7 KI4ILB
Sent: Monday, September 18, 2006 2:58 PM
To: TOWERTALK@contesting.com
Subject: [TowerTalk] Tower mast..
I have been thinking about setting up my rhon 45 tower and have been
dwelling a bit on the mast.
I was thinking about having the mast go thru the tower all the way to
ground level and placing the rotor there.
I was also thinking about placing a big steel ball of somekind in the
bottom of the mast that would rest in a divot at the towers base. That would
take a lot of the weight load off of the Thrust Bearings.
What do you think?
Joe
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