National 33287 Wheel Bearing - Rear Inner

National 33287 Taper Bearing Cone Overview

The National 33287 wheel bearing cone is engineered for driveline and axle applications requiring precise fit and durability. Designed with a cone bore diameter of 2.8750 inches (73.025 mm), this taper bearing cone ensures reliable performance in various vehicle makes and models, including popular trucks and SUVs.

• Cone Bore Diameter: 2.8750 inches (73.025 mm)
• Cone Length: 1.1875 inches (30.163 mm)
• Cone Radius: 0.1400 inches (3.556 mm)
• Part Type: Taper Bearing Cone
• Category: Wheel Bearings, Seals, and Related Components

Technical Specifications and Features

The National 33287 bearing cone features a precise cone bore of 2.8750 inches, which corresponds to 73.025 mm, providing a secure fit on compatible axle shafts. The cone length measures 1.1875 inches (30.163 mm), allowing for proper seating within the bearing assembly. Additionally, the cone radius of 0.1400 inches (3.556 mm) supports smooth rotation and load distribution. This part is designed to meet OEM standards for wheel bearing cones, ensuring consistent performance in driveline systems.

Applications and Problem Solving

This taper bearing cone is commonly used in driveline and axle assemblies for vehicles requiring precise bearing fitment. It is compatible with various truck and SUV models that specify a 2.8750 inch cone bore diameter. The National 33287 helps address issues such as:

• Excessive wheel bearing play or looseness
• Uneven bearing wear or premature failure
• Noise or vibration from worn bearing cones
• Improper fitment causing axle shaft damage
• Maintaining proper bearing preload and alignment

Installation Notes and Tips

When installing the National 33287 taper bearing cone, ensure the cone bore and shaft are clean and free of debris. Use appropriate tools to press the cone onto the axle shaft without damaging the bearing surfaces. Verify the cone length and radius match OEM specifications for your vehicle. Proper lubrication and torque settings are essential to maintain bearing performance and longevity.

Quality Assurance and Warranty

National wheel bearing components are manufactured to meet industry standards for durability and precision. The 33287 taper bearing cone undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to support professional repair and maintenance needs.