The center cartridge is often taken for granted as much of the attention when it comes to turbochargers is focused on housing sizes and wheel trims. The center section is the "durability center" of a ...

That is, thrust bearings where both end ‘washers’ are groved to form a ball-race, and: one washer is sized to clear the 8mm shaft and fit the 16mm bore, while the other is sized to fit the 8mm shaft ...