[TowerTalk] One thrust bearing vs. two

[john@kk9a.com]

Tower top plates and rotator plates are not manufactured very precisely and trying to line up two bearings plus your rotator bearing could be difficult. If it's not lined up exactly it will cause some binding and add more stress to your rotator and I don't see any benefit to having a lower bearing if you are using an adequate rotator.   I think just using a top bearing and a heavy duty rotator about 5' or more below would be a better choice.
 
John KK9A


To:  "'Tower Forum'" <towertalk at contesting.com> 
Subject:  [TowerTalk] One thrust bearing vs. two 
From:  "Tod -ID"
Date:  Tue, 11 Aug 2009 22:20:15 -0600 


I would be interested in 'opinions' on the need or utility for only one thrust
bearing at the top of a tower vs. two thrust bearings one at the top and the
other several feet below the first.

Tod, K0TO