Worm drive hydraulic winches are engineered to ensure total reliability during recovery/winching operations. Standard features of these winches include: compact size and robust construction; Heavy duty, steel centered aluminum bronze wormwheel and casehardened precision ground worm for optimum reliability. Irreversible Worm Set, for substantial reliable braking action; Rugged, high torque motor unit of proven reliability; Manual released for rapid rope pay-out; Heavy duty fabricated steel drum assembly mounted on maintenance-free plain bearings.