By constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry's Problem Solver. Product Features:Heavy duty designEngineered steel composition results in a stronger componentLoose or worn chassis parts can lead to premature tire wearExclusive cover plate protects against contaminants leaking into the bearing surfacePatented cover plate design allows for tighter tolerances vs traditional designs for a more durable partPowdered metal gusher bearing design enables grease to flow through bearing to stud for reduced friction and enhanced strength