Hey, San... It sounds like the movement you are experiencing is "B" in Alan's photo, rather than "C", and that the thread locker closed the gap, but didn't centralize the bearing on the stator.
So here is a couple of ways to improve the centering:
You can use shim stock (thin metal sheet) to fill the gap. this is the most common method. In its simplest form, you can use aluminum foil to do the job. Super glue the end of a strip of foil to the stator, and wrap the stator with enough layers to do the job. As you wrap the foil around the stator, keep putting a small amount of super glue onto the foil to bond the layers together. The foil will be too soft without the glue. If you use too much super glue, it may not set up.
You can use thin wire wrapped in a spiral around the stator. Again, use super glue or epoxy to hold the wire in place. (yeah, I like glue) The advantage to using wire is there are gaps in the surface which allows you to deform the wire shape to make the pieces fit better. You can even gently sand the wire down.
You can use a center punch to make a series of divots in the stator. The metal displaced by the punch will raise the surface at the edge of the punch, and effective increase the diameter of the stator. This works pretty well on aluminum. You want to distribute the divots evenly around the diameter, and form a band across the where the bearing will sit. If you have an adjustable center punch, you can start out at a soft setting to make the pattern , and keep increasing the force at each divot in the pattern until you get a good fit.
Even layers of paint or tape can be used to build up the surface diameter in a fairly uniform manner.
You'll need patience, too.
Dennis
