The paper present a test result of the quality of timing belt pulley. The quality of the pulleys have a significant impact on coupling timing belt with pulley. This is connected with the problem of the accuracy of movement and displacement. The majority of transport is realized the use of conveyor belts. Parallel conveyors, manipulators, electric actuators use movement with timing belts. The accuracy of motion, transmission with timing belt depends on the quality of belt gears, a specially quality of pulley. Measurements of these show a number of errors, affecting the kinematics and dynamics of the whole system-transport. It is also one of the most important parameters affecting on the durability of the timing belt. The quality of the wheels also depends on the chosen production technology, which is linked to the material and possibilities of the manufacturer.
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