Abstract
Rolling bearings are one of the most commonly mechanical elements used in the construction of dynamic equipment. This
element can be considerate as a noise source as a result of relative motion of the components from their construction: rings,
rolling elements and cage. The noise level increase with the increase of the roller bearings wear. By analyzing of the roller
bearings wear level, which appear due to the component failure, it can be determine the deterioration stage and their remaining
lifetime with direct implication to optimal replacement and reduced of the negatively aspect: noise pollution, materials and
energy consumption, waste quantities. This paper presents an experimental study on the increase of noise level generated by
rolling bearings ZKL 1205K in different deterioration stages.