The Gates BX40 Tri-Power Belt is a high-performance V-belt designed to transmit mechanical power efficiently in HVAC and industrial drive systems. It works by transferring torque from motors to pulleys, ensuring smooth and reliable operation of blowers, fans, and compressors in air handlers, rooftop units, and refrigeration equipment. https://www.partshnc.com/bx40-gates-tri-power-belt