Abstract
Noise levels in textile yarn spinning operations generally exceed 90 dB(A). Most of this noise is vibration-induced from unbalanced loads concentrated outside of bearing supports and is transmitted to machine frames where it is then radiated to the air. Simple addition of weight to spindle bolsters reduces vibration transmitted to machine frames, but does not affect directly radiated sound from bobbin and package eccentricities. Details of the results from research studies and delineations of the appropriate corrective measures are presented.