i would like to get your input on this
i'm monitoring a gearbox with an input shaft of 7525 RPM
output shaft 1800 rpm with a 4,181 gear ratio
last time i have run analysis on this gear box i got some reading on the FFT for input shaft of 251 Hz,502 Hz,751Hz,
i got almost the same reading on the potput shaft but with low amplitude.
i would like your comments on this thankyou very much