Bearing 6303-ZZ 1.low vibration,low noise 2.low friction moment 3. ... ,6012,6013,6014,601562series:626,627,628,629,6200,6201,6202,6203,6204,6205,6206,6207,6208,6209,6210,6211,621263series ... ,691016000series:16001,16002,16003,16005,160073.Sealing form:OPEN,RS,2RS,Z,ZZ,RZ,2RZ,N,NR4.Material:Gcr155.Quality standard:ISO9001 ... ,motorcyles,power tools,sports goods,office appliance Ball Bearing 6303-ZZ