Chip, Bearing grade I think has a lot to do with the tolerances that affect the seating in the one piece worm (oxymoron) blocks a relative to the relative worm shaft, and if there is play.? At least I found this to be the case. Preloading is key and I did read Mark's paper on various ways this can be done. Is this the one you are referring to or is there another document? Interesting you are arguing for a looser fit of the bearing and the shell. I need to read this document I think. It's important that we stand on the shoulders of other who have been through this time loop before.?
Peter
