National 513023 Wheel Bearing - Rear

National 513023 Wheel Bearing Overview

The National 513023 wheel bearing is engineered for reliable driveline performance in select Chevrolet and GMC vehicles. Designed as a cylindrical bearing assembly, this component ensures smooth wheel rotation and durability for models like the Chevrolet Blazer and GMC Jimmy.

• Bore diameter: 1.3995 inches (35.547 mm)
• Outside diameter: 2.44 inches (61.976 mm)
• Width: 0.865 inches (21.971 mm)
• Non-separable cylindrical inner race design
• Type: NS (Non-separable)

Technical Specifications and Design

The National 513023 wheel bearing features a non-separable cylindrical inner race, which provides a robust and maintenance-friendly design. With a bore size of 1.3995 inches (35.547 mm) and an outside diameter of 2.44 inches (61.976 mm), this bearing is precisely engineered to fit the wheel hubs of Chevrolet Astro, Blazer, and Safari, as well as GMC Jimmy models. The width of 0.865 inches (21.971 mm) ensures proper fitment and load distribution, contributing to consistent wheel performance and vehicle safety.

Compatible Vehicles and Applications

This wheel bearing is compatible with the following vehicles:

• Chevrolet Astro
• Chevrolet Blazer
• Chevrolet Safari
• GMC Jimmy

It is designed to replace worn or damaged wheel bearings in these models, helping to restore smooth wheel rotation and reduce noise or vibration issues.

Common Issues Addressed by National 513023 Wheel Bearing

• Eliminates wheel hub noise caused by worn bearings
• Reduces vibration during vehicle operation
• Prevents uneven tire wear due to bearing failure
• Restores proper wheel alignment and rotation
• Improves overall driveline stability and safety

Installation Notes and Tips

When installing the National 513023 wheel bearing, ensure the hub assembly is clean and free of debris. Use appropriate tools to press the bearing into place without damaging the non-separable inner race. Verify the bearing is seated correctly to avoid premature wear. It is recommended to inspect related components such as seals and axle shafts during installation for optimal performance.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet industry standards for durability and precision. The 513023 part number undergoes rigorous quality control to ensure consistent performance in Chevrolet and GMC vehicles. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product's reliability.