[TowerTalk] us tower hdx-689 sheave replacement

Bob K6UJ k6uj at pacbell.net
Tue Mar 12 15:46:40 EDT 2013


Rich,

Thanks for the link to the bearings.

Bob
K6UJ



On Mar 12, 2013, at 6:08 AM, Rich Hallman - N7TR wrote:

> Here is the link to the bearing Im looking for.  
> http://www.rbcbearings.com/aero-pdfs/Rolling/025_054/ACBB_MS27640.pdf Under KP10.
> 
> As others have already stated, if US Tower has customized their own sheaves, I think that's my direction.  "Trying" something new poses a big risk for me and the investment I already have in this tower.  Another $150 or $300 may seem like alot, but a small cost based on what has already been invested in the project.
> 
> Now if I can get US Tower to answer their phone today, that may be the harder objective.
> 
> Rich 
> 
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Howard Cawthra
> Sent: Monday, March 11, 2013 10:31 PM
> To: TowerTalk at contesting.com
> Subject: [TowerTalk] us tower hdx-689 sheave replacement
> 
> Whats the ID/OD of the bearing needed? My hdx72 has bronze bushing pressed into the pulley. no staking needed. Must be bronze not oil lite which is just powdered bronze material pressed into a bushing. If its a sealed ball bearing you should be able to buy at any bearing house or your local NAPA auto parts.
> I own a NAPA auto parts store in a farm/ag area and there are very few ball bearings that I can't supply. 
> 
>  73 Howard KA6IOB
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