No it is an Area Trailer from RSA France. I finally get the bearings out. It was a cartige with a double row angular contact bearings from SBC...
SBC stand for Shangaï Bearings Corporation... :-(. After a year of usage, the plastic cages are destroy, external cup/race are marked, chinese quality !
The good thing is that it is very easy to put the new cartrige in place and no setting :-). Of course the new cartirge is not going to be from Shangaï ;-)