Bearing race ?

I've seen some crazy crap happen with trailers, up to a tounge snapping and sending a 20' walkboard right past my head, to the grill of a Dakota. Seen a few that fried bearings and ate the Pave....everyone above has been in this for Along time,and are Excellent Mechanics. Please take their advice.
I did take their advice, i replaced everything including brakes! Works great Im at the campground now