Rotators are designed to take the vertical load of the mast/antenna assembly. You'll probably find folks are divided as to entire load on rotator or thrust bearing. Personally what I do is to install
My experience differs...properly sized thrust bearing side screws ARE used to support the weight of the mast and antennas at my QTH. I have not had any adverse reactions from using this method and it
I'm with Doug. Rotor change out is so much easier this way. 73 are only weight come-a-long inside plate and Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and as
That's how mine is mounted......MUCH easier. :-) Been doing it that way for decades...... 73, Joe WDØM At 02:18 PM 10/25/2004, ChetMoore wrote: I'm with Doug. Rotor change out is so much easie
Here we go again...making assumptions. When you are using an undersized thrust bearing I can see your point Kelly. Not everyone is using a CDE (MFJ) Ham or Tailtwister rotor. Have you ever seen the b
Lifting a 20 foot 200 lb chrome molly mast with a 5 el 20 and a 2 el 40 is not easy to "lift up a few feet" either. Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any question
I too, use the thrust bearings (two of them) to support both thrust and any lateral force. The rotator takes no weight at all and can be replaced or repaired with no effort. Like other messages, I've
I'm with Doug. Rotor change out is so much easier this way. Changing rotors out is really pretty simple even if you don't have a thrust bearing. Simply put a u-bolt and saddle right above the cone to
Hello: I've been monitoring this interesting thread. I haven't had the need to replace a rotor (yet) and I only have one thrust bearing on the top (flat) plate. The rotor is 4 feet down the tower wit
Some towers, expecially crank-ups, have a sleeve at the top of the tower that will hold the mast vertical when the rotator is removed. de Paul, W8AEF Hello: I've been monitoring this interesting thre
to (flat) C-M of sway or Your physics is fine, 16' above the bearing and 4' below with all the weight above will definitely want to tip over. To keep it from tipping a real bearing does the job also
Jamie: What has been suggested here from time to time, and what I did on my own tower, is install a second bearing plate below the top one (kind of where your rotator plate is now). On this second be
An easier way to service a rotor when there is only a top-mounted bearing is to make a bracket of angle with U-bolts that attaches inside the tower above the rotor and holds the mast securely. The Hy
On the old tower I used a 2 X 4 U-bolted to the tower legs with another U-bold holding the mast centered. It served no purpose other than to keep the mast centered and take any bending moment off the
There you have it...one of the best ways of configuring the mast and rotor. Doug David Robbins K1TTT wrote: On my flat tops I always put a second bearing just for that purpose above the rotor. To kee