Indesit WG820G

Could anyone tell me the correct part number for the bearing hub? The bearings had failed and I fitted a bearing hub 046971. Both new and old bearing hubs have left hand thread tapped holes in the flange. First problem I noticed when putting the machine back together was the front edge of the drum rubbing on the door seal. I found that if I pushed the drum further forward slightly the rubbing would stop. With the pulley fitted the rubbing was quite bad as the drum seemed to be pulled too far back. Put the belt on right at the end of the motor pulley but it was only half on the drum pulley. If I had left it like that the belt was liable to come off behind the pulley. I suppose I could make a very thick gasket to make the hub sit further forward but would rather get the correct hub. I could re-fit the old hub with the new bearings but it is quite corroded so that’s probably not a good idea.