National 47686 Wheel Bearing - Rear Inner

National 47686 Taper Bearing Cone Overview

The National 47686 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: 3.2500 inches (82.55 mm)
• Cone Length: 1.3125 inches (33.338 mm)
• Cone Radius: 0.1400 inches (3.556 mm)
• Part Type: Taper bearing cone
• Category: Wheel Bearings, Seals, and Related Components

Detailed Specifications and Design

The National 47686 taper bearing cone features a cone bore measuring 3.2500 inches (82.55 mm), ensuring compatibility with specific axle shaft sizes commonly found in various vehicle makes and models. Its cone length of 1.3125 inches (33.338 mm) provides the necessary surface area for load distribution, while the 0.1400 inch (3.556 mm) cone radius supports proper seating within the bearing assembly. These precise measurements contribute to the bearing's ability to reduce friction and wear during wheel rotation.

Compatible Vehicles and Applications

This wheel bearing cone is compatible with a range of vehicles requiring a 3.2500 inch cone bore diameter and matching dimensions. It is commonly used in driveline and axle assemblies for trucks, SUVs, and passenger vehicles where National parts are specified. The part number 47686 is referenced in OEM and aftermarket repair guides for wheel bearing replacements on select models.

• Resolves wheel bearing noise and vibration issues
• Addresses uneven tire wear caused by bearing failure
• Prevents axle shaft damage due to improper bearing fit
• Eliminates wheel wobble and improves steering stability

Installation Notes and Tips

When installing the National 47686 taper bearing cone, ensure the cone bore and length match the axle shaft specifications exactly. Proper cleaning and lubrication of the bearing surfaces are essential to prevent premature wear. Use appropriate tools to seat the cone without damaging the bearing surfaces. Verify fitment compatibility with the vehicle’s make and model before installation.

Quality Assurance and Warranty

National wheel bearing components are manufactured to meet industry standards for durability and performance. The 47686 taper bearing cone undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, National parts typically come with manufacturer-backed coverage against defects in materials and workmanship.