TY JOUR TI About an assessment of switching-off ability, accuracy of operation and durability of cam safety couplings KW forestry machine KW overload release clutch KW dynamic force JO Actual directions of scientific researches of the XXI century: theory and practice AU Borovikov, R.G. AU Knyazev, A.V. AU Borodin, N.A. AU Shcheblykin, P.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov