[TowerTalk] Rotator vertical loading

[Roger (K8RI)]

Mike wrote:
> I don't see how the load could be shared.
Only under ideal conditions. IOW in the practical world they can not 
share the load.
OTOH if the shaft shrinks with cold temps the shaft will pull on the 
rotator and one of the bearings. Or, it can push any two of them apart.
>  One of the three has it all.
>   
One has the load, two may have stress IF the shaft is held by the thrust 
bearings.  If the mast floats in the bearings there should be no problem.

73

Roger (K8RI)
> But then I don't even play an engineer on TV, much less be one.
>
> 73, Mike NF4L
>
> john at kk9a.com wrote:
>   
>> Don't the two bearings that you have installed hold the weight of the mast 
>> leaving no vertical load on the rotator?
>>
>> John KK9A
>>
>>
>>
>> To: "TOWERTALK" <towertalk at contesting.com>
>> Subject: [TowerTalk] Rotator vertical loading
>> From: "Brad Anbro" Date: Sat, 26 Sep 2009 09:42:28 -0000
>> List-post: <towertalk at contesting.com">mailto:towertalk at contesting.com>
>>
>> Hello T-T'ers,
>>
>> A long time ago, HyGain (Telex / HyGain) used to put a
>> specification for allowable vertical loads in their manuals.
>> I was wondering about the maximum vertical load for a
>> Tailtwister rotator.
>>
>> I have 2 thrust bearings in the tower & mast system, so
>> side loading is not a problem. Thanks for any help!
>>
>> 73 de Brad, N9EN @ Radio Free Roscoe (IL) 
>>
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