National 25820 Wheel Bearing Race - Front Outer or Rear

National 25820 Wheel Bearing Race Overview

The National 25820 wheel bearing race is a precision-engineered taper bearing cup designed to meet the demands of driveline and axle systems. This component is essential for maintaining proper wheel bearing alignment and performance in various vehicle makes and models, including popular trucks and SUVs.

• Cup Bore Diameter: 2.8750 inches (73.0250 mm)
• Cup Length: 0.7500 inches (19.0500 mm)
• Cup Radius: 0.0930 inches (2.3620 mm)
• Part Type: Taper bearing cup
• Part Number: 25820 by National

Detailed Specifications and Design

The National 25820 wheel bearing race features a cup bore diameter of 2.8750 inches (73.0250 mm), providing a precise fit for compatible taper roller bearings. Its cup length of 0.7500 inches (19.0500 mm) ensures adequate surface contact for load distribution, while the cup radius of 0.0930 inches (2.3620 mm) supports smooth bearing rotation and reduces wear. Manufactured to exacting standards, this taper bearing cup is engineered to maintain the integrity of the wheel bearing assembly in driveline and axle applications.

Applications and Problem Resolution

This wheel bearing race is commonly used in driveline and axle assemblies of various vehicle makes and models, including Ford F-Series trucks, Chevrolet Silverado, and Dodge Ram. It is compatible with vehicles requiring a 2.8750 inch cup bore taper bearing cup.

• Eliminates wheel bearing play and noise
• Prevents premature bearing wear and failure
• Restores proper bearing alignment and rotation
• Reduces vibration and improves driveline stability
• Supports safe and reliable wheel operation

Installation Notes and Tips

When installing the National 25820 wheel bearing race, ensure the bearing cup is pressed evenly into the hub bore to avoid distortion. Use appropriate tools such as a bearing race driver to seat the cup fully without damage. Clean the hub bore thoroughly before installation to remove debris and corrosion. Verify the cup bore dimensions match the bearing specifications for a proper fit.

Quality Assurance and Warranty

National manufactures the 25820 wheel bearing race to meet industry standards for durability and performance. While specific warranty details may vary, National products typically come with a limited warranty against defects in materials and workmanship. This ensures reliability and peace of mind when replacing critical driveline components.