Deep groove ball bearing RLS,long life and low noise 1.High precision & quality 2.ISO 9001 certified 3.Stable ... chemical Deep groove ball bearing RLS,long life and low noise Material: chrome steel STEEL NO.COMPONENTCSiMnCrMoPS CuNiGCr150.95~1.050 ... ), ABE C-5(P5)4) Noise Level: Z2V1, Z3V2 , Z4V35) Application: Caster bearings, Home Appliance bearings, Electric Motor bearings, 6) Material: Chrome ...