Because Power Max ® belts are wide in proportion to their thickness, they must have extreme crosswise rigidity to keep them from dishing in. This dishing would cause the tensile cords to become misaligned, leading to uneven speed control and excessive wear on the cords, causing premature failure.
Power Max® belts provide lengthwise flexibility to bend around small sheave diameters without excess strain that would shorten belt life.
Tough polyester cords won't fatigue, even with repeated shock loads. Cords are specially treated to resist stretch and carry high horsepower loads.
Transversely aligned fiber reinforcement in the belt cogs assures crosswise rigidity and flexibility to reduce heat build up and minimize cracking.
Meets RMA standards for oil and heat resistance and static conductivity.