National 5756 Wheel Seal - Front Inner

National 5756 Wheel Seal Overview

The National 5756 wheel seal is designed to provide reliable sealing performance for driveline and axle applications. Engineered with precision, this oil seal helps maintain proper lubrication and prevents contaminants from entering the wheel hub assembly, ensuring smooth operation for vehicles requiring a 2.062 inch shaft diameter.

• Inside diameter: 2.062 inches (52.370 mm)
• Outside diameter: 3.156 inches (80.160 mm)
• Housing bore: 3.151 inches (80.040 mm)
• Width: 0.240 inches (6.100 mm)
• Material: Felt for effective sealing and durability
• Series: 5000, Type 29 oil seal

Detailed Product Description

The National 5756 wheel seal is part of the 5000 series, designed specifically for driveline and axle sealing systems. Constructed from felt material, this oil seal offers a balance of flexibility and resistance to wear, making it suitable for maintaining the integrity of wheel hubs. The precise dimensions, including a 2.062 inch (52.370 mm) inside diameter and a 3.156 inch (80.160 mm) outside diameter, ensure a secure fit within the housing bore of 3.151 inches (80.040 mm). With a width of 0.240 inches (6.100 mm), this seal fits tightly to prevent oil leakage and contamination.

Applications and Problem Solving

This wheel seal is commonly used in automotive driveline and axle assemblies where maintaining lubrication and preventing dirt ingress is critical. It addresses several common issues:

• Prevents oil leaks from wheel hubs
• Protects bearings from dirt and moisture contamination
• Reduces wear on axle components by maintaining lubrication
• Helps avoid premature failure of driveline parts
• Ensures consistent performance in demanding driving conditions

Installation Notes and Tips

When installing the National 5756 wheel seal, ensure the housing bore and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without damaging the felt material. Verify the seal orientation matches the vehicle manufacturer’s specifications. Lubricate the seal lip lightly with compatible oil before installation to reduce initial wear and facilitate proper seating.

Quality Assurance and Warranty

National wheel seals, including part number 5756, are manufactured to meet industry standards for durability and performance. The felt material and precise dimensions contribute to a reliable seal that supports driveline longevity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in their products.