Ceiling fan problem

My fan bearing has worn out and I have to replace the fan.  I took the
old fan down and noted that the mounting system consisted of a large
hook suspended from the ceiling which mates with a hard rubber or
plastic spool affixed to the end of the rod attached to the fan.   I
was surprised to find that all of the fans available in our area are
mounted in a different way.   The fan rod has a ball mounted on the
end of it.   The ball somehow fits into the bracket on the ceiling.
This will mean that I will have to replace the mounting system unless
I can find a fan that will mate with my existing rod which is 1.05 "
od.   Most of the local fans take a rod with a .75 " od rod.  

My fan has the following information on a plate mounted to the outside
of the motor:  Model T300 Series,  Americana Electronics Prod.

Anybody have any ideas how I can get something to work using the
existing mounting system?    
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