I have modified a rotor mounting plate to carry an additional thrust
bearing just above the rotor. I have a thrust bearing mounted at the top
of the tower that really carries the weight (vertical load) while the lower
plate/bearing reduces the side to side thrust and allows me to remove the
rotor for service. Make up a cardboard template of the rotor plate and
trim the cardboard material until it will fit inside the tower (at the
position you wish to mount the plate). The interference will come from the
side braces. Once you have trimmed the cardboard template to fit, position
it on the rotor mounting plate and trace the new shape with a permanent
marker. Using a sabre saw with a metal cutting blade (yes, wear safety
glasses), remove the required material. Smooth the rough edges and paint
the rotor mounting plate with two coats of cold galvanize for weather
protection. Keep in mind that with this modification the plate is
considerable less stout when it comes to vertical loads. Again, I use mine
to stabilize the lower end of the mast (side load), and would NOT recommend
this modification if you are using it to support mast, antennas, and rotor
(unless you reinforce the underside of the plate with some channel steel).
GL de Gary W0AW
KF8KW@aol.com on 08/09/98 07:40:34 PM
To: towertalk@contesting.com
cc: (bcc: Gary R. Hosler/MIPP/Imation)
Subject: [TowerTalk] 25G Rotator Plate.
This has probably been asked before but how in the heck do you get the
rotator
plate on 25G to fit inside the tower. Appears I may have to either bend or
cut some of the cross braces to get it to fit. Prior to doing that, I
thought
I'd ask all the experts out there.
Should have stayed with the 45G!!!!!!!
Dave
KF8KW
Bowling Green, KY
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