[TowerTalk] US Tower bearings

[Mac McCullough]

this sounds like a very good idea, and a good recovery cost wise as well... 
I could go for this,  it would seems that worst case , both bearing surfaces 
wont give up,  the real bearing might seize,  but it would still leave the 
bronze to run,  or if for some reason the bronze seized, the real bearing 
would still turn  ..  good idea,  thanx Dan mac/mc  w5mc



Located 46 miles due North of the Alamo, and 121 miles due South of the 
Western White House.   see my website at  www.collinsandharrisradios.com
----- Original Message ----- 
From: "Dan Hearn" <dhearn at air-pipe.com>
To: "Mac McCullough" <w5mc at austin.rr.com>; <towertalk at contesting.com>
Sent: Sunday, March 11, 2007 9:24 PM
Subject: Re: [TowerTalk] US Tower bearings


> Mac, I faced the same problem several years ago. The bearings were no 
> longer
> available at the manufacturer after several suppliers checked. One of the
> guys at the bearing place sugested a sealed bearing which had the proper 
> OD
> but the ID was too large. He then suggested putting a short piece of 
> bronze
> sleeve bearing he had to slip inside the available bearing to make the ID
> smaller to fit the thru bolt. The bronze sleeve job was several inches 
> long
> and I hack sawed off the right length to fit inside each bearing. It 
> worked
> out fine and has been in use for several years. Sorry I don't have any
> numbers for you.
> 73, Dan, N5AR
>
> -----Original Message-----
> From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com]On Behalf Of Mac McCullough
> Sent: Sunday, March 11, 2007 5:47 PM
> To: towertalk at contesting.com
> Subject: [TowerTalk] US Tower bearings
>
>
> All ,  I am wanting to replace some of the small diameter bearings that 
> are
> pressed and then sort of "set" by dimpling the surrounding aluminum 
> grooved
> pulley ...  these bearings are used throughout the UST wire pulley scheme,
> presently the one I have in my hand is marked  K 8  made in USA  Nice
> Phila... or better yet has anyone replaced this  " my words " poor quality
> bearing with a better quality as well sealed type bearing ...  these 
> bearing
> frequently seem to seize,  thereby forcing the cable to drag it's self
> across the pulley groove and then ruining the pulley in short order ..  I
> love the tower,  just not these critical yet cheap bearings they use .. 
> all
> suggestions welcomed ..  thanx  mac/mc  w5mc
>
>
>
> Located 46 miles due North of the Alamo, and 121 miles due South of the
> Western White House.   see my website at  www.collinsandharrisradios.com
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.446 / Virus Database: 268.18.8/718 - Release Date: 3/11/2007 
> 9:27 AM
>
>