... ---American ,(Din) 100Cr6---Germany4)Shield/Closure:Plain(Open),Z,ZZ,RS,2RS,UG.5)Vibration and Noisy level: Z1,Z2,Z3 ... and the factory is in linqing. Our output of the deep groove ball bearing can reach 10,000 sets per day. We sincerely invite ... ,628,629,6200,6201,6202,6203,6204,6205,6206,6207,6208,6209,6210,6211,621263series:6300,6301,6302,6303,6304,6305 ...