Just want to throw out a little machining content. First picture is the hub with damaged bearing seat, next is the hub bored to accept a sleeve, then the sleeve in the lathe, made from 3" schedule 80 pipe, last is the hub with sleeve and bearing race installed. Safety watchdogs need not worry, the hub fits the wings of a cultivator and will see max speed of 5 mph in the field, will not roll on the road ever.