National 572 Wheel Bearing Race - Rear Outer

National 572 Wheel Bearing Race Overview

The National 572 wheel bearing race is a precision-engineered taper bearing cup designed to meet the demanding requirements of driveline and axle assemblies. With exact dimensions including a cup bore of 5.5115 inches (139.992 mm) and a cup length of 1.125 inches (28.575 mm), this component ensures proper fit and function in compatible vehicle wheel hubs.

• Taper bearing cup with precise cup bore diameter of 5.5115 inches (139.992 mm)
• Cup length measures 1.125 inches (28.575 mm) for accurate seating
• Cup radius of 0.125 inches (3.175 mm) designed for optimal bearing contact
• Part number 572 for easy identification and replacement
• Manufactured by National, a trusted brand in driveline components

Detailed Product Description

The National 572 wheel bearing race is engineered to provide a reliable surface for the tapered roller bearing to operate smoothly within the wheel hub assembly. The cup bore dimension of 5.5115 inches (139.992 mm) ensures compatibility with specific axle and hub configurations, while the cup length of 1.125 inches (28.575 mm) maintains proper bearing preload and alignment. The 0.125 inch (3.175 mm) cup radius is designed to reduce stress concentrations and extend bearing life. This part is essential for maintaining driveline integrity and wheel stability in vehicles requiring this specification.

Common Applications and Problem Solving

• Replacement for worn or damaged wheel bearing races in compatible axle assemblies
• Addresses issues such as wheel hub noise caused by bearing race wear
• Prevents premature bearing failure due to improper race dimensions
• Restores proper bearing alignment and reduces vibration in the driveline
• Helps maintain safe wheel rotation and vehicle handling

Installation Notes and Tips

When installing the National 572 wheel bearing race, ensure the hub and axle surfaces are clean and free of debris. Use appropriate tools to press the race evenly into the hub bore to avoid distortion. Verify the cup bore dimension matches the axle specifications to maintain correct bearing preload. Proper installation is critical to prevent premature wear and ensure long service life.

Quality Assurance and Warranty

National manufactures the 572 wheel bearing race to meet industry standards for durability and precision. While specific warranty details are not provided, National products are generally backed by quality control processes to ensure consistent performance in automotive driveline applications.