1.good quality 2.offer OEM Bearings1, Bearing brand: brands of bearings can be offered. OEM available..2, Bearing material: chrome steel, stainless steel, bearings teel.3, Bearing type:deep grove ball bearings, double row angular contact bearing, single row angular contact ball bearings, cylindrical roller bearings, spherical plain bearings, taper roller bearings trust bal bearings, self-aligning ...