There are many benefits of ultrasound in machinery overseeing, defects on a spinning machine produces an audible sound range and are often checked for vibrations in a low frequency spectrum. There are also defects which cause distinctive audible waves with broad content in high frequencies like, impacting for bearings and gearboxes, friction or rubbing for lubrication and cavitation for pumps. One of the most compelling benefit of ultrasound, in correlation with vibration measurement, is to oversee bearing and gearbox corrosion which could be masked in low frequency measurement with ease. Apart from this, the utility of ultrasonic resonant detectors can act as mechanical enhancer of high frequencies, and the SDT270 edition has an great signal-to-noise ratio which allows sensation of weak variances from background vibrations. The result is that ultrasound mechanics is a very selective process signifying at an initial stage these defects against low frequency errors with also an excellent efficiency in low-speed instrument overseeing.