Deep groove Ball Bearing / Ball bearing / Bearing for machine1. Main products:6000series, 6100series, 6200series, 6300series, 6400serice, 6900series and non-standard series2. Material: Gcr15, Gcr15Simn, G20Cr2Ni4A, Gr18Mo3.Application: Gearbox, instruments and meters, electric motor, electric appliance, internal combustion engines,..