... 6300 series; 2)ABEC-3,5;Z2V2,Z3V3; 3)ISO 9001:2000&SGS; 4)high speed; 5)C2,C0, ... C3 JYB: Original JYB 6301ZZ ABEC-3 Bearings Manufacturer From Cixi ... 9001:2000 Quality System & SGS Test passedHigh Quality: ABEC-3, ABEC-5; Z2V2, Z3V3 Hi, this is George ... / (Din) 100Cr6_Germany (Chrome Steel);2).Tolerance: ABEC-3,ABEC-5;3).Vibration: Z2V2, Z3V3;4).Radial Play (Clearance): C2 ...