Looking for some general advice on bearings. The aileron hinge is a 1/4" aluminum bracket that is 3/4" wide. It attaches to another bracket that has a 3/16" hole. The only instructions are "ball bearing pressed in" as per the sheet. What kind of options are available that would make sense given the 3/4 width of the hinge arm? If the bearing is too wide on the O.D. it creates a thin wall on the bracket. Do aircraft bearings have unique standards vs other types? Back in 1957 I'm not what they did but I'd imagine they used off the shelf type bearings? Would it make sense to press a bronze bushing in?