Deep groove ball Bearings 8*42*12mm High accuracy/speed, Low noise, Long life Good hand feeling Ball BearingsHigh accuracy & speed, Low noise & Vibration, Long ... , Kyodo yoshi, Mobil,ect,Accelerating vibration: z1v1,z2v2 ,z3v3.Model: 608 ZZ, 6004, 6203 2RS, 6205 2RS, 626Seal: Z, ZZ, RS ... , dynamotor, minerals machinery, farm machinery, home electric appliace, etc. Minature Ball Bearings 6004 ZZ