[TowerTalk] Thrust bearing for AB-577??

[Pete Smith N4ZR]

I have a C-3E tribander on an AB-577 "rocket launcher."  I also have a 
3-element 6-meter yagi that I was planning to mount 6 feet above the 
Yaesu rotator at the top of the 577, but was deterred by concern of some 
knowledgeable hams that this might overload the rotator and cause a 
catastrophic failure, destroying the rotator and the tribander.  That's 
just too big a risk for me.

It occurs to me to wonder whether someone out there has contrived a way 
to mount a thrust bearing above the rotator on an AB-577?  I can 
visualize what this might look like, involving a structure attached to 
the top of the top-most tube below the rotator and supporting a thrust 
bearing a foot or so above, but don't want to reinvent the wheel unless 
necessary.

-- 
73, Pete N4ZR