MOOG 512349 Wheel Bearing and Hub Assembly Innovative roll form design ensures consistent and optimal preload. Wheel Stud Bolts: Wheel studs feature a protective coating that helps prevent rust and corrosion, allowing easier removal and proper torquing of the wheel nut. Precision Matched Components: Rigorously controlled manufacturing processes ensure exact matching of bearing raceways and rolling elements to consistently deliver superior performance and minimize noise and vibration. Engineered to overcome problems and deliver smooth, reliable performance.