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[TowerTalk] Another tt40 Wilson Tower Query

Subject: [TowerTalk] Another tt40 Wilson Tower Query
Date: Mon, 29 Aug 2005 11:20:59 -0400
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        Thanks to all of the Reflector readers who help identify my
tower. It's the 2 section  Wilson TT40 with the dual section pipe-in-pipe
mast with the optional free standing rotator base. At the risk of being a
nuisance, here's the  second, more technical question! 
        The area for the installation of the base has what I believe to
be unstable "soil". As a matter of fact it's not soil at all but various
layers of rock used as fill to level an area to construct  a garage.
Consequently, I  believe it cannot be  trusted  to be free standing and
support the tower in the extended position.  
         The alternative plan is to tie into the garage eaves, utilizing
a bracket, at about the 11' level for  lateral support. Normally that
wouldn't be any problem with a fixed  bracket, however, with this tower,
the entire mast rotates around the rotator mounted at the base end. The
question is what type of   bracket mounted thrust bearing device  can be
used to support the mast at the 11' level of the building  that will 
simultaneously offer  vertical support; and allow the mast to rotate
without damage due to wear from metal to metal friction? The largest
thrust bearing I've seen specific to this type installation is only 2"
and too small for my application. If anyone has overcome this difficulty,
please share your solutions. I have my own 15" lathe and welding
equipment so fabrication is not a problem. The solution is probably 
going to be some sort of  bearing that will fit snugly around the lower
level of mast that allows for unimpeded rotation.  Any assistance would
be appreciated. 73's Ron W2CQM/3

Epilogue: visit  www.QRZ.COM/W2CQM for a listing of the  most recent
articles authored by  W2CQM. 
For an update on the most recent Heath 6m dedicated retrofits,  Drake
L4B/8877  project(s) ,and other amplifier related articles see

See:  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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