National 45284 Wheel Bearing - Front Inner

National 45284 Taper Bearing Cone Overview

The National 45284 wheel bearing cone is engineered for precise fitment and reliable performance in driveline and axle applications. Designed with exacting dimensions, this taper bearing cone supports smooth wheel rotation and helps maintain vehicle stability.

• Cone bore diameter: 2.0000 inches (50.8 mm)
• Cone length: 1.2188 inches (30.958 mm)
• Cone radius: 0.2500 inches (6.35 mm)
• Part type: Taper bearing cone
• Category: Wheel Bearings, Seals, and Related Components

Detailed Specifications and Design

The National 45284 taper bearing cone features a 2-inch (50.8 mm) bore diameter, ensuring compatibility with specific axle shafts requiring this precise measurement. Its cone length of approximately 1.22 inches (30.96 mm) and a cone radius of 0.25 inches (6.35 mm) provide the necessary geometry for proper seating and load distribution within the wheel hub assembly. This part is designed to meet OEM standards for durability and fitment, making it suitable for vehicles that require this exact bearing cone size.

Compatible Vehicles and Applications

This wheel bearing cone is compatible with various makes and models that utilize a 2-inch bore taper bearing cone in their driveline and axle assemblies. Commonly found in certain Ford, Chevrolet, and Dodge trucks and SUVs, the National 45284 part number is often sought for replacement in wheel bearing rebuilds and axle maintenance. Always verify fitment with your vehicle’s specifications before purchase.

Common Issues Addressed by National 45284

• Wheel bearing noise due to worn or damaged cones
• Excessive wheel play or looseness in the hub assembly
• Uneven tire wear caused by bearing misalignment
• Vibration or roughness during vehicle operation
• Preventative maintenance for driveline reliability

Installation Notes and Tips

Proper installation of the National 45284 taper bearing cone requires cleaning and inspection of the hub and axle shaft surfaces. Use appropriate bearing grease and ensure the cone seats fully against the cup. Torque specifications should be followed according to the vehicle manufacturer’s guidelines to avoid premature wear or failure. It is recommended to replace the bearing cup simultaneously for optimal performance.

Quality Assurance and Warranty

National wheel bearing components are manufactured to meet industry standards for quality and durability. While specific warranty details for part number 45284 are not provided, National products typically come with a limited warranty against defects in materials and workmanship. Consult the product packaging or National’s official resources for warranty terms.