TY JOUR TI Increased durability of friction units of the hinged equipment for forest machines KW forest machines KW attachments KW bearings KW nanoprogram coating KW composite materials JO Actual directions of scientific researches of the XXI century: theory and practice AU Prokhorov, V.. AU Bykov , V.. AU Okladnikov, L.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov