National A-16 Wheel Bearing and Race Set - Front Inner, Front Outer or Rear Outer

Overview of National A-16 Wheel Bearing and Race Set

The National A-16 wheel bearing and race set is engineered for precision and durability, designed to meet the demanding requirements of various vehicle makes including Aston Martin, Chevrolet, Ford, and Porsche. This taper bearing set ensures reliable driveline performance for models such as the 348 GTB, Camaro, Mustang, and 928.

• Includes taper bearing cone (LM12749) and cup (LM12711)
• Cone bore diameter: 0.8661 inches (21.999 mm)
• Cone length: 0.6550 inches (16.637 mm)
• Cup bore diameter: 1.8100 inches (45.974 mm)
• Cup length: 0.4750 inches (12.065 mm)
• Width: 0.6100 inches (15.494 mm)
• Standout dimension: 0.0135 inches (0.343 mm)

Technical Specifications and Compatibility

The National A-16 wheel bearing and race set features a taper bearing cone and cup designed to precise dimensions for optimal fit and function. The cone bore measures 0.8661 inches (21.999 mm) with a length of 0.6550 inches (16.637 mm), while the cup bore is 1.8100 inches (45.974 mm) with a length of 0.4750 inches (12.065 mm). Both cone and cup have a radius of 0.0500 inches (1.270 mm), ensuring smooth rotation and load distribution. This set is compatible with a wide range of vehicles including Aston Martin DB7, Chevrolet Camaro, Ford Mustang, Porsche 928, and many others listed in the fitment section.

Applications and Problem Resolution

This wheel bearing and race set is used primarily in the driveline and axle assemblies to support wheel rotation and maintain alignment. It addresses common issues such as:

• Excessive wheel bearing noise or roughness
• Wheel play or looseness affecting handling
• Premature bearing wear due to improper fit
• Vibration or wobble during vehicle operation
• Sealing failures leading to contamination and bearing damage

Installation Notes and Tips

• Ensure proper cleaning of the hub and spindle before installation
• Use appropriate tools to press the cone and cup without damage
• Verify correct bearing preload and endplay according to vehicle specifications
• Inspect related seals and replace if necessary to prevent contamination
• Consult vehicle service manual for torque specifications and procedures

Quality Assurance and Warranty

National wheel bearing and race sets are manufactured to meet industry standards for durability and performance. The A-16 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.