The vibration (acceleration) of micro motor bearings is […]
The vibration (acceleration) of micro motor bearings is divided into four levels: Z1, Z2, Z3, and Z4; the unit of measurement is db; the vibration (speed) of bearings is divided into four levels: V1, V2, V3, and V4.
The ZV1 level is suitable for bearing manufacturers to test the vibration of microminiature deep groove ball groove ball bearings in the standard scope;
ZV2 level is suitable for bearing product inspection with general regulations on bearing vibration;
ZV3 level is suitable for motors and other motor bearings that are relatively specified;
ZV4 level is suitable when there are strict requirements on vibration and noise. This level has an excellent international standard.