National 516005 Wheel Bearing - Rear Inner

Overview of National 516005 Wheel Bearing

The National 516005 wheel bearing is engineered for reliable performance in select Nissan and INFINITI vehicles. Designed to meet precise specifications, this wheel bearing supports smooth wheel rotation and helps maintain vehicle stability.

• Compatible with Nissan Frontier, Pathfinder, Xterra, and INFINITI QX4 models
• Part number 516005 ensures exact fitment and quality
• Outside diameter of 80.00 mm (3.15 inches) for proper hub alignment
• Width of 38.00 mm (1.496 inches) for secure installation
• Gen1 design providing standard durability and performance

Technical Specifications and Design Details

This National wheel bearing features a bore diameter of approximately 42.00 mm (1.654 inches), matching OEM requirements for the specified vehicles. The cone length and cup length both measure 38.00 mm (1.496 inches), ensuring consistent bearing engagement and load distribution. The cone radius is 3.5 mm (0.1378 inches), while the cup radius is 1.5 mm (0.0591 inches), contributing to the bearing’s precise fit and function. The outer race width is 38.00 mm (1.496 inches), supporting the bearing’s structural integrity under driving conditions.

Applications and Problem Resolution

This wheel bearing is designed for use in the front driveline of Nissan Frontier, Pathfinder, Xterra, and INFINITI QX4 vehicles. It addresses common wheel bearing issues such as:

• Excessive wheel play or looseness
• Unusual noise or grinding from the wheel area
• Uneven tire wear caused by bearing failure
• Vibration or wobbling during vehicle operation
• Reduced steering responsiveness due to bearing wear

Installation Notes and Tips

Proper installation of the National 516005 wheel bearing requires attention to torque specifications and cleanliness. It is recommended to inspect the hub and spindle for damage before installation. Use appropriate tools to press the bearing into place without causing damage to the races or seals. Ensure the bearing is properly lubricated and seated to avoid premature wear.

Quality Assurance and Warranty Information

National wheel bearings are manufactured to meet industry standards for durability and performance. The 516005 part features a Gen1 design, reflecting established engineering practices. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.