TY JOUR TI ASSESSMENT OF THE STATE OF ROLLING BEARINGS BY VIBRATION SPEC KW Friction bearing KW Wear KW Fatigue KW Defect KW Vibration spectrum KW Separate frequency KW Diagnostics KW Spectrumanalyzer JO Operation of Maritime Transport AU Palchik, K.B. AU Krugova, I.M. AU Ogurtcov, D.V. AU Khalilov, N.A. PY 2022 IS PB Budget Educational Institution of Higher Education “Admiral Ushakov State Maritime University”