[TowerTalk] 2nd thrust bearing inside tower - you opinions??

[AA6DX - Mark]

Double Thrusts?  Been there, done that more than once ..Rohn 45 Flop-Over 
and straight-up, old Richfield gas station tower, et al ... never had a 
problem, just be sure the alignment is correct.  Would do it again, way I 
did it was to have the 2 bearings hold the total weight of the array, and 
not "seated" on the rotator.  That allowed the rotator to be easily 
serviced. I was using 22' mast ..  Tri-Ex sked 80.  Both West Coast storms 
and Washington DC ice loadings .. Sure there will be those who do not 
concur, but ... worky worky!
73
Mark Nelson  -  AA6DX

mailto: AA6DX at ARRL.NET

----- Original Message ----- 
From: "K5XA John" <k5xa at godfather-ridge.com>
To: <towertalk at contesting.com>
Sent: Wednesday, February 21, 2007 6:37 AM
Subject: [TowerTalk] 2nd thrust bearing inside tower - you opinions??


Howdy,

Need a little advice.

Planning about 130 feet of Rohn 45 - 20 to 22 feet of mast - Force 12 Magnum
240N over a Force 12 C31-XR at the top - side mounting another C31-XR.

Considering a 2nd thrust bearing inside the tower.

Any suggestions/ideas/experiences you might share?

Tnx!

73 ............... K5XA