[TowerTalk] Need 3.5" Thrust Bearing

[Jay Kesterson K0GU]

On 6/29/2011 3:34 AM, K8RI on TT wrote:
> On 6/28/2011 9:41 PM, Mike Cizek wrote:
>> I need a thrust bearing for a 3.5" mast for a tower project and am
>> having a hard time finding one.  Anybody have a source?  Thanks.
>>
> How about the ROHN TB-4?  The opening is considerably larger than the
> TB-3. I'd have to go out and measure just how large a mast they can
> handle and I don't know if they are still made.

   I just measured one of the two TB-4s I have stored on the basement. 
Less than 3.1" diameter opening.

73,  Jay  K0GU