@cjd 3.bearing failure can be caused by over greasing and blowing out the seals,wheels wearing and Axle shafts “walking” causing pressure on the bearing.Maintenance programs on these cars being altered by management due to budget cuts,is the issue. Complete swap out of these components on a regular basis is best risk avoidance.It is hard to visually gauge the condition of the bearing without listening or visually examining it at normal operation speeds.