FIELD: power and transport machines and mechanisms. SUBSTANCE: gear includes body with oil space, converter of oscillation signals of members of bearing, information processing unit connected to converter. Acoustic probe in the form of elastic tube with rough internal surface is attached to bearing body. Converter is hydrophone placed inside body of object. One end of mentioned probe is acoustically coupled to hydrophone and the other one - to oil space of bearing. EFFECT: increased efficiency and reliability of test and diagnosis of rolling bearings. 5 dwg
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