TY JOUR TI PREVENTIVE MAINTENANCE STRATEGY FOR CRUSHING EQUIPMENT KW sudden failure KW rolling bearing KW radial clearance KW vibration diagnostics KW residual life KW preventive maintenance JO Vestnik of Kazan State Agrarian University AU Gimaltdinov, I.H. AU Ziganshin, B.G. AU Galiev, I.G. AU Dmitriev, A.. AU Muhametshin, A.A. AU Gricenko, A.V. PY 2020 IS 15 PB Kazan state agrarian University