... , they are suitable for precision instruments, low noise motor, Automobile, Motorcycles, and other common machinery ... and European beaings3.Tolerance level:ABEC-1(po),ABEC-3(P6)4.Noise level:EMQ V1 Z2, ... EMQ V2 Z3,EMQ V3 Z4,EMQ V45.Application:Home appliances,low noise ... confirming P/O7. Application:home appliances.low noise and high speed electric motors,auotomotive components ...