ROOTCASTLE / ENGINEERING LAB
Bearing defects
Isang local defect sa rolling surface na makakagawa ng impacts habang contacts pass it.
Mechanism
Isang local defect sa rolling surface na makakagawa ng impacts habang contacts pass it.
Typical symptoms
High-frequency impacts at characteristic frequencies in the envelope spectrum ay maaaring magpakita.
Methode ng pagkakabadyet
Acquire acceleration with sufficient bandwidth; document the envelope band at sensor mounting.
Alternative explanations
Mababaw na paglubog, mga epekto ng elektrisidad at ang mga epekto ng proseso ay maaaring magtanim ng kapareho ng enerhiya.
Additional measurements
Bearing geometry, load, speed, lubricant analysis, temperature at time trend.
Likely frequency components
BPFO, BPFI, BSF, FTF ± 1×
Mga limitasyon: nang walang speed, load, mounting, at transmission-path context, hindi ito diagnoses. Ang spectrum examples ay conceptual, hindi complete fault models o field measurements.
SIMULATED · NOT LIVE TELEMETRY
Vibration / FFT
Model and assumptions
512 samples; deterministic sinusoids and seeded noise. FFT is one-sided peak amplitude, not RMS. Δf = fs/N. Hann coherent gain is corrected; spectral leakage can remain. The 4.7× component is not a physical bearing-fault model.
Educational model. Results are not sufficient to diagnose a machine or establish safe operating limits.
Further reading: SKF — Ang mga pag-aalinlangan ay makakatulong na makita ang mga nasira na sangkap ↗