This paper is a survey of the literature on gear vibration and is
designed to offer a better understanding of the need for predictive maintenance
for safe operation of machine-tools and minimizing idle time and reducing repair
costs. The ultimate goal of predictive maintenance is the implementation of
maintenance works „when appropriate” before the equipment is damaged
during the operation. Main failure in a gear couple of a simple gearbox, are
defects on all teeth and defects localized only on a group of teeth. These
defects can be partitioned defects or localized defects.
Cuvinte cheie: unelte specifice, zgomot, vibraţii de viteze, eroare de
transmisie, de întreţinere predictivă
Keywords: spur gear, noise, gear vibration, transmission error,
predictive maintenance
