Plasti-Block has standard Black HDPE blocks of various sizes in 2" thick
options.
https://store.plastiblocks.com/product/hdpe-blocks/
They also carry a UV Resistant HDPE version that only comes in one color,
Forest Green in 2" thicknesses.
https://store.plastiblocks.com/product/hdpe-uv-resistant/
GL
Patrick, W7TMT
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Ed Stallman
Sent: Wednesday, October 30, 2024 20:51
To: towertalk@contesting.com
Subject: Re: [TowerTalk] 2" Thrust bearing With same bolt pattern , Rohn 45
Thanks all for the help and Ideas , I like the suggestion of using the HDPE
High Density Polyethylene Black , Only antenna on the mast will be a 6m .
I found the HDPE on ebay, one inch is the thickest I could find . I would think
that's thick enough ?
Thanks all the the tips , Ed N5DG
On 10/30/2024 9:05 PM, john@kk9a.com wrote:
> The DX Engineering bearing does not cost much more than the Rohn TB3.
> I have no experience with the DXE bearing but I did briefly own a Rohn
> bearing and I quickly replaced due to its tightness. Replacing a
> bearing is a big job if you have antennas on the mast so you really
> want a thrust bearing that is going to last. Another commercial
> option is flange bearings but you'll have to drill a couple of holes
> in the top plate. US towers uses them and I believe they have very
> few issues if you keep them greased. You can make one out of black
> Delrin, nylon, UHMW etc material, just drill holes for the mast and
> mounting bolts. K3EJJ used to make nylon split bearings that matched
> Rohn's hole pattern and they could be installed without removing antennas
> however I have not seen them in long time.
>
> John KK9A
>
>
> Ed Stallman n5dg wrote:
>
> I'm looking for a place to buy a 2" universal thrust bearing that will
> have the same bolt pattern as the Rohn 45 flat top plate , I've had
> the bearings seize on 3 Rohn bearing . I see DXE has a replacement but
> pricey . I think it was here on Tower Talk , I seen links were I can
> buy the //universal thrust bearing . Any suggestion is very welcome ./
>
> /Thanks Ed N5DG
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|