Turbocharger bearings are deep groove ball bearings, cylindrical roller bearings, double angular contact bearings in pairs and double pairs of a special type angular contact ball bearings. Deep groove ball bearings and cylindrical roller bearings mainly bear radial load, high speed, twin double angular contact ball bearings can support radial and axial load, axial displacement and smaller. For higher speed requirements, greater load bearing, the material of steel cage, and special surface treatment. Series bearing diameter (mm) group with ways 6300ADMA 20-40 N300ADMB 20-75 N300ADMP 20-1000 N300ADLA 20-45 7300ADLA 20-100 face to face (DF) 7300ADLA + QJ300ADL 20-100 tandem (DT)