National 47620 Wheel Bearing Race - Rear Inner

National 47620 Wheel Bearing Race Overview

The National 47620 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 5.2500 inch (133.35 mm) cup bore and a 1.0313 inch (26.195 mm) cup length, this component ensures proper fit and function in compatible vehicle wheel hubs.

• Taper bearing cup with a 5.2500 inch (133.35 mm) cup bore diameter
• Overall cup length of 1.0313 inches (26.195 mm) for accurate seating
• Cup radius of 0.1250 inch (3.175 mm) to maintain bearing alignment
• Part number 47620 for precise identification and replacement
• Manufactured by National, a recognized brand in driveline components

Detailed Specifications and Design

The National 47620 wheel bearing race is engineered to provide a reliable surface for the tapered roller bearing to operate smoothly within the wheel hub assembly. The 5.2500 inch cup bore ensures compatibility with specific axle shaft sizes, while the 1.0313 inch cup length supports proper bearing seating and load distribution. The 0.1250 inch cup radius is critical for maintaining the correct bearing geometry, reducing wear and extending service life. This part is suitable for vehicles requiring a taper bearing cup with these exact dimensions, commonly found in certain trucks and SUVs.

Applications and Problem Solving

• Replaces worn or damaged wheel bearing races to restore proper wheel hub function
• Addresses issues such as wheel noise, vibration, or uneven tire wear caused by bearing race wear
• Prevents premature bearing failure by providing a smooth, durable race surface
• Ensures correct bearing alignment to maintain driveline stability and safety
• Compatible with vehicles requiring a 5.2500 inch bore taper bearing cup

Installation Notes and Tips

Proper installation of the National 47620 wheel bearing race requires careful attention to fitment and seating. Use appropriate tools to press the race evenly into the hub bore without damaging the cup surface. Verify the cup bore and length dimensions match the vehicle specifications before installation. It is recommended to inspect the mating bearing and hub components for wear or damage during replacement to ensure optimal performance.

Quality Assurance and Warranty

National manufactures the 47620 wheel bearing race to meet industry standards for durability and precision. While specific warranty details are not provided, National products typically adhere to strict quality control processes to ensure reliable performance in automotive driveline applications.