[TowerTalk] Which Rohn Thrust bearing to use

[Dave Thompson <thompson@mindspring.com>]

After many years of using a crank up I am switching to a Rohn 45 guyed tower. I 
plan to use my 30 year old laddermast to mount a Tennedyne original T-10 and 
then mount my 2 el Cushcraft 40 above that by 9 feet.  I am looking at Thrust 
bearings.  I used Fafnir bearings on the crank up but I am looking at the TB-3 
and TB-4 on the Rohn 45.
The laddermast is 2.25" so it looks like I need the TB-4 as the max on the TB-3 
is 2".

Is this right?

73 Dave K4JRB 
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