EXPERIMENTAL ANALYSIS OF TOOTH HEIGHT CHANGING AT TIMING BELTS

Abstract

Timing belt drives present relatively new power transmitters that transmit power by friction and form contact. Load at timing belts is under direct influence of active surface of timing belt tooth. During exploitation, the height of tooth at timing belt decrease and, by that, reduction of active surface is provoked, load increases and working life decreases. Besides of tooth height, changing of tooth width at timing belt, also presents very important factor. The tribomechanical system at pulley teeth - timing belt teeth with height changing during exploitation is analyzed in this paper. Experimental testing of tribological characteristics was done at custom design and made testing device at Center for power transmission at Faculty of Engineering in Kragujevac.