Well maybe I should have gotten the whole kit and kaboodle. I hadn't thought of a yard, but I didn't know that the bearing assembly was such a substancial piece. The bearing assembly is so robust as to be almost over-engineered. My assesment comes from working on farm equipment while growing up and on cars for 20 years and an automotive engineer for the past 18 years. That's all. The design of the rear hub and bearing assembly did not lead me to believe that there would be any adverse wear/damage to the hub from normal bearing wear. I suppose it is possible for the shaft to wear if bearing lubrication is lost, but I think that the bearing material would be the first to go. I hadn't known it to occur but I don't work in a shop so I can't say it doesn't happen. I'll find out when I remove mine.
Good luck. Let us know how it goes.
'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)