TY JOUR TI RESEARCH OF THE WEAR MECHANISM OF BEARING SEATS OF AUTOMOTOR-TRACTOR TRANSMISSIONS KW fretting process KW specific load KW slip amplitude KW fracture model JO Vestnik of Kazan State Agrarian University AU Ivanschikov, Y.V. AU Skovorodin, V.Y. AU Dobrohotov, Y.N. AU Andreev, R.V. AU Vasil'ev, A.O. AU Valiev, A.R. PY 2021 IS 15 PB Kazan state agrarian University