7JE gear sleeve coupling elastomer: 4.34" OD, 2.19" length, rated 725 in-lbs nominal torque, solid one-piece rubber insert for standard 7J coupling assemblies. Heavy-duty synthetic rubber absorbs vibration & shock load, cuts running noise and avoids motor bearing abrasion during long-hour power transmission work. Integrated solid molding without gaps, no lubrication required, greatly reduces regular maintenance and frequent replacement costs of transmission systems. Widely fits air compressors, printing machines, motors, water pumps, blowers, mixers, conveyors and lawn mower power transmission equipment. Velodi precision replacement elastomer, seamless tight fit to original gear sleeves, longer service life than low-cost generic rubber coupling inserts.