[TowerTalk] Replacement Thrust Bearing

[Robert Harmon]

Gene,

That is a beefy thrust bearing !   

Bob
K6UJ



On Apr 17, 2015, at 11:56 AM, Gene Smar <ersmar at verizon.net> wrote:

> Bob:
> 
> When I installed my tower in 2001 I used a commercial, i.e., non-TB3, bearing that I bought from the local industrial supply house. Here are a few postings: http://lists.contesting.com/archives//html/Towertalk/2002-12/msg00213.html , http://tinyurl.com/3bv2zac , and photos at http://tinyurl.com/kc9ousj +/-. 
> 
> 
> 73 de
> Gene Smar  AD3F
> 
> 
> 
> 4/17/15, john at kk9a.com wrote:
> 
> Many years ago I bought a couple for four bolt flange 2" bearings with a
> grease fitting from US Towers, perhaps they still sell them. I have also
> purchased a 3" four bolt mast bearing from Berry Bearing. They should be
> easy to find.
> 
> John KK9A
> 
> 
> To: "towertalk at contesting.com" <towertalk at contesting.com>
> Subject: [TowerTalk] Replacement Thrust Bearing
> From: Robert Harmon k6uj at pacbell.net>
> Date: Fri, 17 Apr 2015 09:49:36 -0700
> 
> I am overhauling my rotator and thought it would be good to replace my thrust
> bearing also.
> I have the Rohn TB3 bearing now. It has been in use for 18 years and feels
> pretty rough.
> Im thinking of going with a different bearing this time with a steel body and
> greased. (grease fitting)
> Looked thru the archives on tower talk to find out what others have used and
> can?t find much,
> on this type of replacement and I know the bearing supply houses have them,
> just haven?t
> pursued searching with them yet. I would like to know what others have
> used.
> If you have used a thrust bearing like this, could you share
> the number and supplier ? Array Solutions has their model TB2 which is this
> type
> of bearing but it only has a two hole flange for mounting. They have a
> larger
> unit with a 4 hole
> flange but it is for a larger diameter mast than 2 inch. I want a 4 hole
> flange
> but for 2 inch.
> Here is the info from their webpage:
> https://www.arraysolutions.com/Products/thrustbearing.htm
> Anyway, what say you ?
> 
> 
> thanks,
> Bob
> K6UJ
> 
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