Hi Bob,
If you're considering replacing your thrust bearing with an eye towards
keeping the bearing's grease out of the direct sunlight and rain, Oatey
makes a roofing flange that can easily be configured to fit around your
mast, just above the bearing.
The part is made by Oatey and it's P/N is '14052 Master Flash'. It's
available at Amazon and Ebay, among others - *http://tinyurl.com/nu63zq4*
The supplied malleable metal base can quickly be trimmed off of it as
it's not needed, leaving the remaining product to be trimmed to the
proper mast diameter (graduated scales, molded in). I've used a filet
of GE Silicone II above and below to permanently attach it to the mast.
73,
Jon Pearl - W4ABC
On 4/17/2015 12:49 PM, Robert Harmon wrote:
I am overhauling my rotator and thought it would be good to replace my thrust
bearing also.
I have the Rohn TB3 bearing now. It has been in use for 18 years and feels
pretty rough.
Im thinking of going with a different bearing this time with a steel body and
greased. (grease fitting)
Looked thru the archives on tower talk to find out what others have used and
can’t find much,
on this type of replacement and I know the bearing supply houses have them, just
haven’t
pursued searching with them yet. I would like to know what others have used.
If you have used a thrust bearing like this, could you share
the number and supplier ? Array Solutions has their model TB2 which is this
type
of bearing but it only has a two hole flange for mounting. They have a larger
unit with a 4 hole
flange but it is for a larger diameter mast than 2 inch. I want a 4 hole flange
but for 2 inch.
Here is the info from their webpage:
https://www.arraysolutions.com/Products/thrustbearing.htm
Anyway, what say you ?
thanks,
Bob
K6UJ
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