[TowerTalk] Thrust bearing / rotor load

Doug Renwick ve5ra at sasktel.net
Sat Jun 13 18:35:22 PDT 2009


Well doesn't that just go opposite to my experience.  I have used TB-3 s
to bear vertical loads for years without any failure.  Obviously Rohn
doesn't know that their bearings can bear vertical loads.  Maybe someday
mine will fail, but most things don't last for ever anyway (especially
made in China).  Experience trumps.

Doug

I'll run the race and I will never be the same again. 
-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Chris Pedder
Sent: June 13, 2009 1:55 AM
To: towertalk at contesting.com; nekvtster at gmail.com
Subject: Re: [TowerTalk] Thrust bearing / rotor load

Hallelujah!

Can we now put this one to rest? The Japanese manufacturers have made 
this plain for years and now we have a definitive statement from 
Rohn. That seems to cover all the bases.

Chris


At 12:16 12/06/2009, Brian K1LI wrote:
>Paul,
>
>I inquired directly to Rohn for a definitive answer to this pesky
question.
>Contrary to the definition of "thrust bearing" that appears in other
>sources, Rohn says their TB series are meant only to bear lateral loads
>(i.e., loads perpendicular to the the bearing's axis of rotation); they
are
>not meant to bear vertical loads (i.e., loads parallel to the the
bearing's
>axis of rotation).




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