Original equipment-specification bearings for Ford and Lincoln vehicles. Product Features:Testing, engineering and manufacturing tolerances held to 25 microns - three times thinner than a piece of paper - compared with some competitors at 250 micronsOptimized sealing effect and a low torque-to-turn ratio to minimize drag and help increase fuel economySpecial bearing seals to help keep out contaminants, the number one cause of bearing failureProprietary technology in the design and assembly process, where applicable, that is difficult to reverse engineer, helps ensure quality and helps reduce comebacksHelps avoid costly comebacks from pad, rotor or suspension parts problems that aftermarket replacement hubs may contribute toMeets original equipment test specifications for each specific application