National 510019 Wheel Bearing - Front or Rear

Overview of National 510019 Wheel Bearing

The National 510019 wheel bearing is engineered for reliable driveline performance in select Audi and Volkswagen models. Designed with a double row angular contact design, this wheel bearing supports smooth rotation and durability for vehicles such as the Audi A4 Quattro and Volkswagen Passat.

• Double row angular contact design for enhanced load capacity
• Inner race bore diameter of 1.772 inches (45 mm)
• Outer race outside diameter of 3.228 inches (82 mm)
• Width of 1.457 inches (37 mm) for precise fitment
• Compatible with multiple Audi and Volkswagen Quattro models

Technical Specifications and Design Features

The National 510019 wheel bearing features a double row angular contact design, which provides improved axial and radial load handling compared to single row bearings. The inner race bore measures 1.772 inches (45 mm) with a radius of 0.118 inches (3 mm), ensuring a secure fit on the axle shaft. The outer race has an outside diameter of 3.228 inches (82 mm) and a width of 1.457 inches (37 mm), matching OEM dimensions for proper installation. This E-3 type bearing is part of the Fwdb series, designed to meet the specific requirements of Audi and Volkswagen driveline systems.

Compatible Vehicles and Applications

This wheel bearing is compatible with a range of Audi and Volkswagen models, including but not limited to:

• Audi 90 Quattro, 100 Quattro, 200 Quattro
• Audi A3, A4, A4 Quattro, A6, A6 Quattro, A8 Quattro
• Audi Allroad Quattro, Coupe Quattro, RS6, S4, S6, V8 Quattro
• Volkswagen Passat

It is designed to replace worn or damaged wheel bearings in these vehicles, restoring proper wheel alignment and driveline function.

Common Issues Addressed by National 510019 Wheel Bearing

• Eliminates wheel noise caused by worn bearings
• Reduces vibration and uneven tire wear
• Restores smooth wheel rotation and handling
• Prevents premature axle and hub damage
• Improves overall vehicle safety and drivability

Installation Notes and Tips

Proper installation of the National 510019 wheel bearing requires attention to fitment dimensions and torque specifications. Ensure the bearing bore and outer race dimensions match the vehicle’s hub assembly. Use appropriate tools to press the bearing into place without damaging the races. Verify that the bearing is seated fully and rotates smoothly before reassembling the wheel components. It is recommended to inspect related seals and replace them if necessary during installation.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet industry standards for durability and performance. The 510019 part number undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s reliability for Audi and Volkswagen applications.