Towertalk
[Top] [All Lists]

Re: [TowerTalk] Thrust bearings

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Thrust bearings
From: K8RI on TT <k8ri-on-towertalk@tm.net>
Date: Mon, 10 Oct 2011 01:07:07 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On 10/10/2011 12:21 AM, Jim Lux wrote:
> On 10/9/11 7:55 PM, Charlie Gallo wrote:
>> Hey Gang,
>> Reading the Nth thread on lubing thrust bearings, and just had a thought - 
>> would it be a good idea to design a thrust bearing that works based upon an 
>> 'ultra high molecularly weight filled self lubricating plastic" (aka 
>> something like a filled teflon - or rulon or even vespel) - nothing to ever 
>> rust/lubricate, and they can take decades of low to medium speed 
>> rotation/sliding - heck, in theory, if your mast was truly round, you could 
>> just have 3 or 4 pressure blocks, and it just rides on that

We used to use graphite impregnated Delrin for low speed bearings.  How 
much of a load they'd take I don't know, but they worked well and lasted 
long in our applications.

73

Roger (K8RI)
>>
>> BTW, for that matter, if you could assure it stays WET (not dry, WET), I'd 
>> bet a lignum Vitae bearing would be about perfect for a tower thrust bearing
>>
>>
>>
>>
> Many people have used HDPE (aka a cutting board).  If you're looking for
> a bearing that takes radial loads (perpendicular to the shaft), then you
> saw the cutting board in half.  Put the two halves together, use a hole
> saw to cut a hole that clears the mast in the center.  Then bolt the two
> halves on either side of the mast.
>
> _______________________________________________
>
>
>
> _______________________________________________
> 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

<Prev in Thread] Current Thread [Next in Thread>