I purchased new super bearings made by Blackseard in the USA they are very expensive around £600 delivered worth every penny IMHO
the hard bit if your making new inserts is making them loose enough so you can push the shaft in without moving the bearing and tight enough to ensure the bearing rotates and not the shaft in the insert, I have seen pictures of aftermarket inserts which have worn though the shaft because they were too loose, the originals were rubber coated steel not delrin or nylon the rubber heated up and shrunk onto the shaft this does not happen with the aftermarket parts and its almost impossible to tell what's happening once installed, as it is such a pain to a job to do I did not risk it
The silicone method I used worked really well as it acts as a lubricant whilst installing then when it goes off it holds everything in place I would recomend this to glue the bearings in place, maybe it would work shaft to insert maybe add some ridges in the insert to keep the silicone in place ...just an idea never tried it
a very satisfying job it it works
