1.high quality high precision and long life 2..Low friction& durability 3.Various Brands 4.MOQ:100PCS 5.Certificates:ISO900 Double rows pherical roller thrust bearing spherical roller bearing OEM service Special Properties & Services1.High quality steel2.High grade balls--quiet and smooth operation even at high speed3.Corresponding Brands: YTYTZ etc.4.Good impact resistance ability5.Low friction ...