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User Guide – Vibration Analysis Setup for KEMET Vibration Sensors
6
FINAL VERIFICATION
6.1
Examples of Damage to Rotating Machines
Figure 17 shows a simplified representation of a rotating machine, and Figure 18 details
examples of damages to such machinery and how the detection sensor can pick up vibrations
related to these examples.
Frequency
Damaged Part
Band (Hz)
3k – 10k
Bearing
1k – 5k
Gear
50 – 200
Coupling
30 – 100
Rotating equipment
10 – 50
Fixed base
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • One East Broward Boulevard • Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Figure 17 – Rotating Machine Example
Abrasion, burnout
Missing tooth, gears do not mesh
Misalignment
Unbalance
Rattle, loose fixing bolt
Figure 18 – Fast Fourier Transform (FFT) Output
Damage Details
Detection Sensor
Vibration, acoustic,
sound, heat
Vibration, acoustic
Vibration, heat
Vibration
Vibration
10
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