Device for bearing diagnostics using shock pulse method
Operation manual
Section 4 Operation
27
Another reason can be strong lubrication contamination. Check the oil
condition with the mini – laboratory BALTECH OA-5000. If after the lubrication
change the dBm
value decreases a little, it means that the bearing is
damaged.
d) Periodic shock pulses (Figure 4-12).
A periodic shock pulse is typically equal or multiple of the bearing rotation
frequency.
Figure 4-12. Periodic shock pulses.
e) Cyclic shock pulses (Figure 4-13).
A periodic single shock pulse can indicate overload, pressure shock, gear
damage or other impacts.
Figure 4-13. Cyclic shock pulses.
