Device for bearing diagnostics using shock pulse method
Operation manual
26
Section 4 Operation
Figure 4-10. Bearing damage at an early stage of development.
с) Bearing with severe damage (Figure 4-11).
If the dBm value is higher than 35dB (red area), dBc and dBm values differ
considerably, the dBm
value indicates the bearing damage severity level:
•35~40 dBn: slight damage;
•40~45 dBn: severe damage;
•>45 dBn: breakdown risk.
Figure 4-11. Bearing with severe damage.
