National 510017 Wheel Bearing - Front

National 510017 Wheel Bearing Overview

The National 510017 wheel bearing is engineered for reliable driveline performance in select Lexus and Toyota models. Designed as a double row angular contact bearing, it offers precise fitment and durability for vehicles such as the Lexus GS300, GS400, GS430, LS400, SC300, SC400, SC430, and Toyota Supra.

• Double row angular contact design for enhanced load capacity
• Inner race bore diameter of 1.378 inches (35 mm)
• Outer race outside diameter of 3.032 inches (77 mm)
• Width of 1.654 inches (42 mm) for both inner and outer races
• Compatible with Lexus and Toyota driveline systems

Technical Specifications and Design Features

This National 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 1.378 inches (35 mm) with a radius of 0.059 inches (1.5 mm), ensuring a precise fit on the axle shaft. Both the inner and outer races have a width of 1.654 inches (42 mm), contributing to the bearing's stability and longevity. The outer race outside diameter is 3.032 inches (77 mm), matching OEM specifications for the listed Lexus and Toyota models. This bearing is part of the Fwdb series and classified as type E-3, suitable for Gen1 applications.

Compatible Vehicles and Applications

The National 510017 wheel bearing is compatible with a range of Lexus and Toyota vehicles, including:

• Lexus GS300, GS400, GS430
• Lexus LS400
• Lexus SC300, SC400, SC430
• Toyota Supra

This part is designed to replace worn or damaged wheel bearings in these models, maintaining proper wheel alignment and driveline efficiency.

Common Issues Addressed by National 510017 Wheel Bearing

• Eliminates wheel noise caused by worn bearings
• Prevents wheel wobble and vibration during driving
• Restores smooth wheel rotation and handling
• Reduces uneven tire wear due to bearing failure
• Maintains proper axle alignment and driveline performance

Installation Notes and Tips

When installing the National 510017 wheel bearing, ensure the axle shaft and hub assembly are clean and free of debris. Proper torque specifications should be followed to avoid premature bearing failure. It is recommended to inspect related components such as seals and hubs during installation. Use appropriate tools to press the bearing into place without damaging the races or seals.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet or exceed OEM standards for fit, form, and function. The 510017 bearing undergoes rigorous quality control to ensure durability and performance in demanding driving conditions. This product includes a limited warranty against defects in materials and workmanship, providing confidence in its reliability for Lexus and Toyota applications.