On 18 Jan 2013 at 16:22, WA5CAB at cs.com wrote: > Probably because the field installation of the bearings was done with > a hammer and something like a 1/2" socket. And they bent the outer > shield and/or brinnelled the races. Well, I had thought of that too, but I figured that not every radio tech in those days was a dolt. ;-) Ken W7EKB