The timing pulley drive consists of a closed annular tape with equally spaced teeth on the inner periphery surface and the corresponding pulley. When moving, the tooth and the tooth groove of the pulley meshed to transmit motion and power, which is a kind of meshing transmission, so it has the various characteristics of gear transmission, chain transmission and flat belt transmission. It is widely used in automobiles, textiles, printing and packaging equipment, sewing equipment, office equipment, laser engraving equipment, tobacco, financial equipment, stage lighting, communication and food machinery, medical machinery, iron and steel machinery, petrochemical industry, instrumentation, various precision machine tools and other fields.