[JRTJH]

First, welcome to the forum.

I'd ask, is there a history of inspection/maintenance on the axles? When were the bearings last cleaned, inspected and re-lubricated and what was their condition at that time (I'm not asking when was grease last injected via the zerk fitting), but when were they actually removed, cleaned, inspected and re-lubricated?

When they failed, what happened, what, if anything, led up to the failure and what actual damage was incurred?

Lastly, do you know why the mechanic that inspected the axles after the damage made his conclusion that the "bearing broke" and did he show/explain, just what "broke" on the bearing?