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Re: [TowerTalk] US Tower HDX-689 Sheave replacement

To: towertalk@contesting.com
Subject: Re: [TowerTalk] US Tower HDX-689 Sheave replacement
From: w6rgs@cox.net
Date: Mon, 11 Mar 2013 19:58:47 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Check out www.hubcityinc.com.
They make the bearings for one of the tower manufacturers. Lots of choices, but make sure the measurements are correct.

73  Bill W6RGS

At 06:20 PM 3/11/2013, Bob K6UJ wrote:
That is discouraging to hear. I am hoping to order some spare bearings for my HDX589. I suppose contacting US Tower wouldn't do any good, they probably wont let us know the supplier for the sheave bearings.............
On the other hand I think I will all them tomorrow and see.


Bob
K6UJ




On Mar 11, 2013, at 4:06 PM, Dan Hearn wrote:

> I have replaced the bearings on myTX472. Two bearing places in Spokane said
> that there is no replacement available with the correct ID and OD.. They
> could supply a bearing with the correct OD but the ID would be too large.
> They did have a bronze sleeve bearing with exactly the correct OD and ID to
> fill the space between the thru bolt and the available bearing. It was
> relatively easy to change the bearings and stake the edge of the sheave.
>
> Dan, N5AR
>
>
> On Mon, Mar 11, 2013 at 2:59 PM, <gdaught6@stanford.edu> wrote:
>
>>> If you heat a bearing to the flash point of the grease, you've
>>> probably
>>> already destroyed the bearing.
>>
>> There's no way I can turn the handle on my crank-up fast enough to even
>> warm the
>> grease!
>>
>> 73,
>>
>> George T Daughters, K6GT
>> CU in the California QSO Party (CQP)
>> October 5-6, 2013
>>
>>
>> _______________________________________________
>>
>>
>>
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>>
>
>
>
> --
> Dan Hearn
> N5AR
> _______________________________________________
>
>
>
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