Gutted!!

Seen that happen to a Meg 225, was a collapsed bearing. Not cheap, screwed other parts. Too late now, but I wouldn't of driven on it.
 
totally unsure as to how though, It had freed off whilst we were putting it onto trailer first thing, really has be baffled
 
Maybe applying the footbrake caused it to stick then wouldn't release and now it has cooled it's ok again.