MOOG 515103 Wheel Bearing MOOG hub assemblies are performance proven, quality tested and are available for a broad range of foreign and domestic vehicles. Engineered to overcome problems and deliver smooth, reliable performance. Application specific design MOOG is the official steering and suspension of NASCAR Innovative roll form design ensures consistent and optimal preload. In specific applications, the molded ABS shield and socket connections are used to provide the optimal defense against contamination, providing longer life. Manufactured from a blended material that provides superior ABS protection, increases abrasion resistance and protects against adverse conditions. Premium quad lip design seal ensures maximum protection. Rigorously controlled manufacturing processes ensure exact matching of bearing raceways and rolling elements to consistently deliver superior performance and minimize noise and vibration. Wheel studs feature a protective coating that helps prevent rust and corrosion, allowing easier removal and proper torquing of the wheel nut.