National A-51 Wheel Bearing and Race Set - Rear Inner

Overview of National A-51 Wheel Bearing and Race Set

The National A-51 wheel bearing and race set is designed specifically for Kia Sedona models, providing reliable driveline performance. This taper bearing set includes both cone and cup components engineered to precise dimensions for optimal fit and function.

• Compatible with Kia Sedona wheel hub assemblies
• Taper bearing cone bore diameter: 1.3750 inches (34.925 mm)
• Cone length: 0.8125 inches (20.638 mm)
• Cup bore diameter: 2.6875 inches (68.262 mm)
• Cup length: 0.6250 inches (15.875 mm)
• Standout measurement: 0.0156 inches (0.396 mm)
• Includes taper bearing cone (part 14585) and cup (part 14525)
• Overall width: 0.6874 inches (17.460 mm)

Detailed Product Description

The National A-51 wheel bearing and race set is a precision-engineered taper bearing set designed to meet the exact specifications required for Kia Sedona vehicles. The cone bore diameter of 1.3750 inches (34.925 mm) and cone length of 0.8125 inches (20.638 mm) ensure a secure fit within the wheel hub assembly. The cup bore diameter and radius both measure 2.6875 inches (68.262 mm), with a cup length of 0.6250 inches (15.875 mm), providing a stable seating surface for the bearing cone. The standout dimension of 0.0156 inches (0.396 mm) is critical for proper bearing preload and wheel alignment. This set includes the taper bearing cone (part number 14585) and cup (part number 14525), which together maintain smooth rotation and reduce friction in the driveline system.

Common Applications and Problem Resolution

• Replaces worn or damaged wheel bearings on Kia Sedona models
• Addresses wheel hub noise caused by bearing wear
• Eliminates wheel vibration and uneven tire wear
• Prevents premature bearing failure due to improper fit
• Restores proper wheel alignment and driveline performance

Installation Notes and Tips

• Ensure the wheel hub assembly is clean and free of debris before installation
• Use proper tools to press the bearing cone and cup into place without damage
• Verify the standout measurement to maintain correct bearing preload
• Consult the Kia Sedona service manual for torque specifications and installation procedures
• Inspect related components such as seals and axle shafts during installation

Quality Assurance and Warranty Information

National wheel bearing and race sets are manufactured to meet industry standards for durability and performance. The A-51 part number 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.