National 517003 Wheel Bearing - Front Inner

Overview of National 517003 Wheel Bearing for Toyota Previa

The National 517003 wheel bearing is engineered specifically for Toyota Previa models, ensuring precise fitment and reliable performance. Designed with exacting dimensions, this wheel bearing supports smooth wheel rotation and vehicle stability.

• Compatible with Toyota Previa wheel assemblies
• Bore diameter of 1.693 inches (43.00 mm) for accurate fit
• Cone length of 1.6535 inches (42.00 mm) for proper seating
• Outside diameter measures 3.031 inches (77.00 mm)
• Outer race width of 1.496 inches (38.00 mm) for durability
• Gen1 design ensuring standard performance specifications

Technical Specifications and Design Details

This National wheel bearing, part number 517003, features a bore size of approximately 1.693 inches (43 mm), which is critical for fitting the Toyota Previa’s hub assembly. The cone length and width are both 1.6535 inches (42 mm), providing the necessary contact surface for load distribution. The outside diameter of 3.031 inches (77 mm) and outer race width of 1.496 inches (38 mm) contribute to the bearing’s structural integrity and compatibility with the vehicle’s driveline components. The Gen1 design indicates this is a first-generation bearing model, adhering to original equipment manufacturer (OEM) standards for wheel bearings in this application.

Applications and Problem Resolution

This wheel bearing is intended for use in the driveline and axle system of Toyota Previa vehicles. It addresses several common issues related to wheel bearings, including:

• Eliminating wheel noise caused by worn or damaged bearings
• Reducing wheel vibration and improving ride quality
• Preventing premature wear of hub and axle components
• Maintaining proper wheel alignment and rotation
• Ensuring safe and stable vehicle handling

Installation Notes and Tips

When installing the National 517003 wheel bearing on a Toyota Previa, ensure the hub and surrounding components are clean and free of debris. Proper lubrication of the bearing surfaces is essential to prevent premature wear. Use appropriate tools to press the bearing into place without causing damage to the cone or cup. Verify the bearing’s fitment by checking the bore and outside diameter measurements against the vehicle’s specifications. Follow manufacturer torque specifications for all fasteners during reassembly.

Quality Assurance and Warranty Information

National wheel bearings, including part number 517003, are manufactured to meet stringent quality standards. This product undergoes rigorous testing to ensure durability and performance in line with OEM requirements. While specific warranty details may vary, National typically offers coverage against defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms related to this wheel bearing.