An assembly (200, 700) comprising: a turbocharger center housing (280, 780) that comprises a through bore and a counterbore positioned between a compressor end and a turbine end of the through bore wherein the through bore comprises a sleeve mating surface positioned between the compressor end and the counterbore and a turbine side bearing lubricant film formation surface (797, 799) positioned between the counterbore and the turbine end; a compressor side bearing that comprises an outer race, rolling elements and an inner race; a turbine side bearing that is received at least in part by the through bore to form a lubricant film clearance between the turbine side bearing and the turbine side bearing lubricant film formation surface (797, 799) of the through bore of the turbocharger center housing (280, 780); and a sleeve (300, 703) positioned at least in part in the through bore of the turbocharger center housing (280, 780) between the compressor end and the counterbore wherein the sleeve (300, 703) comprises a locating flange (310, 710) and an axial extension (312, 712) that extends from the locating flange (310, 710) wherein the axial extension (312, 712) comprises an outer mating surface (320, 720) that contacts the sleeve mating surface, an inner compressor side bearing lubricant film formation surface (752, 756), a compressor side axially facing spacer surface and a turbine side axially facing spacer surface wherein an outer race of the turbine side bearing is axially located at least in part by the turbine side axially facing spacer surface and wherein the outer race of the compressor side bearing is received at least in part by the sleeve (300, 703). a turbocharger center housing (280, 780) that comprises a through bore and a counterbore positioned between a compressor end and a turbine end of the through bore wherein the through bore comprises a sleeve mating surface positioned between the compressor end and the counterbore and a turbine side bearing lubricant film formation surface (797, 799) positioned between the counterbore and the turbine end; a compressor side bearing that comprises an outer race, rolling elements and an inner race; a turbine side bearing that is received at least in part by the through bore to form a lubricant film clearance between the turbine side bearing and the turbine side bearing lubricant film formation surface (797, 799) of the through bore of the turbocharger center housing (280, 780); and a sleeve (300, 703) positioned at least in part in the through bore of the turbocharger center housing (280, 780) between the compressor end and the counterbore wherein the sleeve (300, 703) comprises a locating flange (310, 710) and an axial extension (312, 712) that extends from the locating flange (310, 710) wherein the axial extension (312, 712) comprises an outer mating surface (320, 720) that contacts the sleeve mating surface, an inner compressor side bearing lubricant film formation surface (752, 756), a compressor side axially facing spacer surface and a turbine side axially facing spacer surface wherein an outer race of the turbine side bearing is axially located at least in part by the turbine side axially facing spacer surface and wherein the outer race of the compressor side bearing is received at least in part by the sleeve (300, 703).