zf needle bearing

My clutch throw out bearing was completely seized and run the bearing support very hot.The inputshaft oil seal was ruined but most of all the input shaft needle bearing has worked loose and was inside the case on the input shaft.Here is the question:is this bearing just a press fit in the case or should it be fixed with something.the gearbox is a 5 DS-25/2.Thanks for any comments on this one,Emiel.