8JE Coupling Sleeve, 5.06" OD, 2.5" Elastomer Length, 1135 in-lbs Nominal Torque, made of Rubber & special additives. Synthetic rubber for transferring and absorbing shock load. Coupling Sleeve is for use on the S-Flex series, solid design, fit for air compressors, printing and dyeing machines of Atlas Copco, Ingersoll Rand and other brands,also use on Motors, Pumps, Compressors, Blowers, Mixers and Conveyors. Resistance to oil and higher temperatures.