National 25880 Wheel Bearing - Front Outer or Rear Inner

Overview of National 25880 Wheel Bearing Cone

The National 25880 wheel bearing cone is a precision-engineered taper bearing cone designed for driveline and axle applications. With exact dimensions including a cone bore of 1.4365 inches (36.4870 mm) and a cone length of 0.9688 inches (24.6080 mm), this component ensures reliable fitment and performance in compatible vehicles.

• Brand: National
• Part Number: 25880
• Category: Wheel Bearings, Seals, and Related Components
• Cone Bore: 1.4365 inches (36.4870 mm)
• Cone Length: 0.9688 inches (24.6080 mm)
• Cone Radius: 0.0620 inches (1.5750 mm)
• Part Description: Taper bearing cone

Technical Specifications and Features

The National 25880 wheel bearing cone features a precise cone bore diameter of 1.4365 inches (36.4870 mm), which is critical for proper seating and rotation within the hub assembly. The cone length of 0.9688 inches (24.6080 mm) provides the necessary surface area for load distribution, while the cone radius of 0.0620 inches (1.5750 mm) supports smooth bearing operation. These specifications make it suitable for use in various driveline and axle configurations requiring a taper bearing cone of these dimensions.

Applications and Vehicle Compatibility

This wheel bearing cone is compatible with a range of vehicles that require a taper bearing cone with the specified dimensions. It is commonly used in driveline and axle assemblies of domestic and import cars and trucks where National parts are specified. For example, it may be found in certain Ford, Chevrolet, and Dodge models requiring a 1.4365-inch cone bore bearing cone. Always verify fitment with your vehicle’s service manual or parts catalog using the part number 25880.

• Resolves wheel bearing noise caused by worn cones
• Addresses excessive play or looseness in the wheel hub
• Prevents premature bearing failure due to improper fit
• Restores proper bearing preload and alignment
• Eliminates vibration and uneven tire wear related to bearing issues

Installation Notes and Tips

When installing the National 25880 wheel bearing cone, ensure the bearing surfaces are clean and free of debris. Use proper tools to press the cone into the hub assembly without damaging the bearing surfaces. Apply the recommended grease and torque specifications as outlined in the vehicle’s service manual. It is advisable to inspect the matching cup and other related components for wear and replace as necessary to maintain optimal bearing performance.

Quality Assurance and Warranty

National wheel bearing cones are manufactured to meet industry standards for durability and precision. The 25880 part undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects. Consult the product documentation or supplier for exact warranty terms related to this part.