[TowerTalk] US Tower Thrust Bearing...

K7LXC@aol.com K7LXC at aol.com
Fri Nov 25 09:27:38 EST 2005

In a message dated 11/24/2005 8:17:30 A.M. Pacific Standard Time,  
towertalk-request at contesting.com writes:

>  I'm new to the list; I guess this question has been asked  before related 
the proper use of a US Tower TX-455 Thrust Bearing Model  number TB-2US. I'm
using a 3 el SteppIR on a 5 foot mast. When I tighten  the thrust bearing
clockwise it locks itself into place. 

    Yep, it's eccentric and that's the theory. It's  not really capable of 
taking much of a vertical load - it's meant more for  lateral thrust which it 
does okay at. 

>  This point do I lift  up on the mast to remove the weight of mast and 
from on top of the  rotor, or do I let the rotor take the full weight. My
rotor is a new M2  (the 90 mph windstorm took out my Yaesu G-800DXA). Any
other suggestions  would be greatly appreciated. 

The manufacturer wants the weight of the mast and  antennas ON the rotator so 
don't worry about the vertical load in the TB. 
Steve    K7LXC
Professional tower services for commercial and amateur
Cell: 206-890-4188

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