National 30304 Wheel Bearing and Race Set - Front Outer, Outer or Rear

National 30304 Wheel Bearing and Race Set Overview

The National 30304 wheel bearing and race set is designed for precise fitment and reliable performance in various vehicle models including Dodge, Hyundai, Mercedes-Benz, Mitsubishi, Nissan, Toyota, and Volkswagen. This taper bearing assembly ensures smooth driveline operation and durability under demanding conditions.

• Bore diameter: 0.7874 inches (20 mm)
• Cone length: 0.5906 inches (15 mm)
• Cone radius: 0.0800 inches (2.032 mm)
• Cup length: 0.5118 inches (13 mm)
• Cup radius: 0.0800 inches (2.032 mm)
• Outside diameter: 2.0472 inches (52 mm)
• Width: 0.6398 inches (16.25 mm)
• Design: Iso metric taper bearing assembly
• Type: TS series 30300

Technical Details and Specifications

The National 30304 wheel bearing and race set features an iso metric design optimized for taper bearing assemblies. The cone and cup components have matching radii of 0.0800 inches (2.032 mm), ensuring proper seating and load distribution. With a bore size of 0.7874 inches (20 mm) and an outside diameter of 2.0472 inches (52 mm), this set fits specific wheel hubs requiring precise dimensions. The cone length of 0.5906 inches (15 mm) and cup length of 0.5118 inches (13 mm) contribute to the overall width of 0.6398 inches (16.25 mm), providing a compact yet robust bearing solution. The standout dimension of 0.1280 inches (3.25 mm) allows for proper axial positioning within the hub assembly.

Compatible Vehicles and Applications

This wheel bearing and race set is compatible with a range of vehicles, including but not limited to the Dodge 300D and 300SL, Hyundai Excel and Sonata, Mercedes-Benz 300D, Mitsubishi Colt, Cordia, Mirage, and Tredia, Nissan Pulsar, Pulsar NX, Sentra, and Toyota Pickup and Precis. It is also suitable for Volkswagen Beetle models requiring a TS type taper bearing assembly. The part number 30304 ensures correct identification for these specific applications.

Common Issues Addressed by National 30304

• Eliminates wheel hub noise caused by worn bearings
• Prevents uneven tire wear due to bearing play
• Restores smooth wheel rotation and driveline efficiency
• Reduces vibration and improves vehicle handling
• Prevents premature failure of related driveline components

Installation Notes and Tips

Proper installation of the National 30304 wheel bearing and race set requires clean and lubricated hub surfaces. Use appropriate tools to press the cone and cup components without damaging the bearing surfaces. Verify the bore and outside diameter measurements to ensure compatibility with the vehicle hub. Follow manufacturer torque specifications for axle nuts and retainers to maintain bearing preload and prevent premature wear.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet strict ISO standards for durability and performance. The 30304 bearing and race set 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 product reliability.