In a message dated 12/20/2007 9:02:53 A.M. Pacific Standard Time,
towertalk-request@contesting.com writes:
> I will be looking to add a cushcraft m5ab mini beam (35lbs, and 3.35sq
windload) along with a
yaesu g-450a rotor to my 7-40 universal aluminum tower. Question is should
I
be concerned
with using a thrust bearing? I wont be looking to add anything more later
since I have a small
city lot and want to be nice to my neighbors.
IMO thrust bearings are way overrated. For this moderate load, you really
don't need anything. The rotator will take the vertical load and the tower can
take the horizontal load so no problem. Save your money.
OTOH with large, aggressive loads they can be useful.
Cheers,
Steve K7LXC
TOWER TECH
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