... Groove Ball Bearing manufacturerQuality: with ISO 9001:2008 Quality System, reach to ABEC-1,Z1Quantity: with an annual output of 12,000 ... ball bearing/6003Brand nameCJY, MPZ, M2 or NeturalSeries60,62,63 seriesMaterialChrome steel (Gcr15)SealingOpen, Shield(Z, ZZ), Rubber(RS, 2RS) with ... friends from home and abroad to cooperate with us and create a bright future together. Deep Groove Ball Bearing 6004