[TowerTalk] Thrust bearing problem

[K8RI]

On 7/16/2012 3:36 PM, Jeff Goldman wrote:
> Sorry, the link didn't transfer.  I'll try again.
>
> http://www.surpluscenter.com/sort.asp?keyword=PBF4&catname=powerTrans&PAGELEN=20&PageNo=3

That's where I purchased the P80 chain, sprockets, and idlers for my 
system. I had the parts in less than a week.
I don't remember how the prices compare between them and 
WWW.Bearingson.com.



>
> 73,
> Jeff, k3dua
>
>
>
> On Jul 16, 2012, at 3:34 PM, Jeff Goldman wrote:
>
>> Bill,
>>
>> Take the whole thing and put it in a heavy vise.   Then cut off the remaining lower 2 feet of the mast, leaving only about 2-3 inches of the mast stuck in the bearing.   Get a hacksaw, and put the blade through the center of the mast and cut the mast from the inside out to the bearing.   Make =a total of 4 cuts at 90 degrees apart, and the segments should then be easier to remove (it still take a heavy hammer, but now there is some room for the segments to break loose from the bearing.
>>

Probably 2 cust about 60 degrees apart and they fall out...then again... 
maybe not.


73

Roger (K8RI)

>> If that doesn't work, here is a link to Surplus Centerand they sell bearings.
>> Surplus Center
>> They have four 2 inch bearings, 2 with set-screws, and 2 with locking collars.  One of these should fit your needs.
>>
>> No association with the Surplus Center, just a happy customer.
>>
>> 73,
>> Jeff, k3dua
>>
>>
>>
>> On Jul 16, 2012, at 3:07 PM, w6rgs at cox.net wrote:
>>
>>> Hello group,
>>> I purchased a used Tri-Ex W-51 tower.  The 4-bolt thrust bearing was
>>> very rusty and had the 2"-diameter steel mast rusted to the
>>> bearing.  The upper part of the mast had been cut from the bearing,
>>> so removing the bearing and the 2' lower part of the mast as a unit was easy.
>>> I've tried lots of penetrating oil over a 3-month period, big pipe
>>> wrenches and a vise, but I'm still unable to free the mast stub from
>>> the bearing.  I was hoping to refurbish the thrust bearing for
>>> re-use, but no luck.
>>> Also, no luck searching around for a replacement bearing unit that
>>> meets the same bolt-hole dimensions.   Found a place called Hub City,
>>> but the measurements are off.  Anyone know of another source for a
>>> 4-bolt thrust bearing?  Already tried Tashjian Towers.
>>> Thanks in advance.
>>>
>>> 73  Bill W6RGS
>>>
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