The curvilinear Htd Tooth profile elinateds the high load stress at tooth roots which are an inherent weakness with traditional trapezoidal profile belts.the results in a smoother and more precise transmission of power at high load capacities and with extented belt life.HTD belts provide a high performance drive system for many industried where durability and low maintenance are required such as gardening equipment machine tools,textile equipment,packaging,vending machines and conveyor systems