National B-52 Wheel Bearing - Front Inner

Reliable Wheel Bearing for Chevrolet, Oldsmobile, and Pontiac Vehicles

The National B-52 wheel bearing is engineered to meet the specific needs of classic Chevrolet, Oldsmobile, and Pontiac models including the 88, 98, Bel Air, Catalina, and Corvette. Designed with precision, this single row angular contact bearing ensures smooth wheel rotation and durability under various driving conditions.

• Single row angular contact design for efficient load handling
• Inner race bore diameter of 1.281 inches (32.537 mm)
• Outer race outside diameter of 2.963 inches (75.260 mm)
• Overall width of 1.150 inches (29.210 mm) for proper fitment
• Compatible with multiple classic GM models for reliable driveline performance

Technical Specifications and Design Details

The National B-52 wheel bearing features a single row angular contact design, which provides a balance of radial and axial load support. The inner race has a bore diameter of 1.281 inches (32.537 mm), an outside diameter of 1.875 inches (47.625 mm), and a width of 0.870 inches (22.098 mm). The outer race measures 2.963 inches (75.260 mm) in outside diameter and 0.770 inches (19.558 mm) in width, with a bore diameter of 2.331 inches (59.207 mm). The bearing’s overall width is 1.150 inches (29.210 mm), making it suitable for the specified Chevrolet, Oldsmobile, and Pontiac models. This precise sizing ensures proper fitment and optimal performance in the vehicle’s driveline system.

Compatible Vehicles and Applications

This wheel bearing is compatible with a range of classic General Motors vehicles, including Chevrolet models such as the Bel Air and Corvette, Oldsmobile 88 and 98, and Pontiac Catalina. The National B-52 bearing is designed to replace original equipment in these vehicles, providing reliable wheel support and smooth rotation essential for safe driving.

• Eliminates wheel noise caused by worn bearings
• Reduces vibration and improves steering stability
• Prevents premature wear of axle components
• Restores proper wheel alignment and rotation
• Addresses bearing failure symptoms such as roughness or play

Installation Notes and Tips

When installing the National B-52 wheel bearing, ensure the hub and spindle surfaces are clean and free of debris. Proper lubrication and torque specifications should be followed according to the vehicle manufacturer’s guidelines. It is recommended to inspect related components such as seals and races during installation to maintain overall driveline integrity.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet industry standards for durability and performance. The B-52 bearing undergoes rigorous quality control to ensure dimensional accuracy and material strength. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s reliability.