National 510081 Wheel Bearing - Front or Rear

Overview of National 510081 Wheel Bearing

The National 510081 wheel bearing is engineered for reliable driveline performance in select BMW and Rolls-Royce models. Designed with a double row angular contact design, this wheel bearing ensures durability and precise fitment for vehicles such as the BMW 328i xDrive and Rolls-Royce Phantom.

• Double row angular contact design for enhanced load capacity
• Inner race bore diameter of 1.929 inches (49 mm)
• Outer race outside diameter of 3.543 inches (90 mm)
• Width of 1.772 inches (45 mm) for consistent fitment
• Compatible with multiple BMW and Rolls-Royce models

Technical Specifications and Design Features

The National 510081 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 1.929 inches (49 mm) in diameter with a width of 1.772 inches (45 mm), matching the outer race width for balanced performance. The outer race outside diameter is 3.543 inches (90 mm), ensuring a precise fit within the hub assembly. This E-3 type bearing is part of the Fwdb series, designed to meet the specific requirements of front wheel drive and all-wheel drive vehicles.

Compatible Vehicles and Applications

This wheel bearing is compatible with a range of BMW and Rolls-Royce models, including but not limited to:

• BMW 325xi, 328i xDrive, 328xi, 330xi, 335i xDrive, 335xi
• BMW 525xi, 528i xDrive, 528xi, 530xi, 535i xDrive, 535xi, 550i xDrive, 650i
• Rolls-Royce Phantom
• BMW X3 and X5 models

Common Issues Addressed by National 510081 Wheel Bearing

• Eliminates wheel noise caused by worn or damaged bearings
• Reduces vibration and improves steering stability
• Prevents premature tire wear due to bearing failure
• Maintains proper wheel alignment and hub integrity
• Supports safe and smooth vehicle operation under load

Installation Notes and Tips

Proper installation of the National 510081 wheel bearing requires attention to torque specifications and cleanliness to avoid contamination. It is recommended to inspect the hub assembly and related components for wear before installation. Use appropriate tools to press the bearing into place without damaging the races. After installation, verify wheel alignment and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet OEM standards for fit, form, and function. The 510081 part number undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, National typically offers coverage against defects in materials and workmanship, providing confidence in the product's reliability for BMW and Rolls-Royce applications.