Garrett by Honeywell Ball Bearing Turbochargers
Production turbos have traditionally used a Hydrodynamic Bearing system to control the motion of the rotating assembly; the turbine wheel, shaft and compressor wheel. It is a simple system employing just a few parts, typically either 1 or 2 journal bearings, a thrust bearing thrust collar and spacer(s). It is also extremely reliable and needs only two factors to operate efficiently for the lifetime of the turbo:
1. A supply of good quality clean oil of the correct grade.