While positioning and repositioning the aileron torque tube in the keel, I started thinking about how one might perform maintenance. I was also not happy with the way the build manual suggested to hold the torque tube bearings into their mounting angles.
I designed a very simple retainer ring that holds the bearing very nicely into the mounting bracket. I also modified the bracket by cutting out a portion of the bracket so that the torque tube can be removed simply by removing the three socket screws that retain the bearing, and then slipping the bearing out of the mounting bracket. Finally, installing nut plates on the mounting brackets makes their installation into the keel easier.