MBL's 4LK510 Super KB Agricultural V-Belt provides greater horsepower than light duty fractional horsepower belts. It is designed for severe operating conditions where other FHP belts may stretch or pull apart due to heavy shock loads. The special outer covering is designed for smooth clutching and backside idler applications. Aramid fiber is used in the tensile cord for length stability. This belt resists extreme temperatures, high humidity, oil and cracking.