I would consider weight of the rudder on the bearings minimal, even during high G maneuvers, bigger concern may be the pressure from the rudder cables on the bottom hinge, just my 2 cents worth.
Riley Collins Rutledge, TN KR2ss What if I used one KR hinge to carry the weight at the bottom of the rudder, and two REB's, 1 centre, and 1 at the top of the rudder???
