[amsat-bb] G-5400/5500 Cross-Boom U-Bolts

Jim Jerzycke kq6ea at verizon.net
Sun Jul 3 12:19:44 PDT 2011

Greetings, all

I'm "improving" my elevation rotor setup, and I'm wondering what others 
are using to secure the cross-boom inside the elevation rotor.

I've been using stainless hose clamps, and they work kinda-sorta OK, but 
have a tendency to slip.  I'd really like to get either some proper size 
u-bolts, or the part numbers from the clamps Yaesu supplies with the rotor.

They appear to be 54mm / 2-1/8" inside-the-legs, and I'm coming up blank 
on searching for some.

There are no part numbers for the clamps in the manuals I have for the 

I have FOUR elevation rotors, and NO clamps!

Seems like the clamps always get lost when people take these apart to sell.


73, Jim  KQ6EA

More information about the AMSAT-BB mailing list