significant difference in rotational speed of the shaft 26 and the journal bearings 44 and 46 it is critical that the interface between the shaft and the journal bearings be well lubricated for that purpose chamfers are provided at the intersection of the inner surface and the outer surface of the journal bearings 44 and 46 with the axial end surfaces of the journal bearings and the chamfer at the intersection of the inner surface of the journal bearings with the end surfaces thereof is greater than the chamfer at the intersection of the outer surface and the end surfaces after the oil has flowed across the journal bearings 44 and 46 it is released into a space in the bearing housing 16 outboard of the bearing lands 40 and 42 it is at this point that the turbocharger may leak lubricating oil into either the turbine or compressor housings and create undesired hydrocarbon emissions by the engine to prevent or at least minimize this the turbocharger of the present invention is provided with a system for allowing free flow of oil axially away from the journal bearings while minimizing the opportunity for that oil to enter either the turbine or compressor housings for this purpose the shoulder 52 on the shaft 26 at the turbine end of the shaft presents an abutment surface 62 to the outboard end of the journal bearing 46 and the abutment.