Improved RPPÖ Panther« Design Feature ULTRA-CORDÖ tensile members and the AbleÖ compound ULTRA-CORD doesn't stretch or shrink, thus reducing the strain on bearings, shafts, and other drive components ULTRA-CORD resists degradation and moisture to give you longer belt life The Able compound, an advanced polymer, resists tooth shear, adding to the belt's stability The rugged parabolic tooth profile reduces noise and offers drive efficiency up to 98% Made in the U.S.A. No warranty claims are made or implied.. BELT DRIVE 1 1/2"W 139T