National 5070 Wheel Seal - Front Inner

National 5070 Wheel Seal Overview

The National 5070 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.

• Inside diameter: 1.803 inches (45.8 mm)
• Outside diameter: 2.969 inches (75.41 mm)
• Width: 0.250 inches (6.35 mm)
• Material: Felt for effective sealing and durability
• Series: 5000, Type 29 design for specific axle fitments

Detailed Product Description

The National 5070 wheel seal features a felt sealing material that offers a balance of flexibility and wear resistance, suitable for various automotive axle applications. With an inside diameter of 1.803 inches and an outside diameter of 2.969 inches, this seal fits shafts measuring 45.8 mm and housing bores around 75.31 mm. The 0.25-inch width ensures a secure fit within the axle housing bore, minimizing the risk of oil leaks and contamination ingress. This oil seal is part of National's 5000 series, known for consistent quality and compatibility with many vehicle makes and models requiring a Type 29 seal.

Common Applications and Problem Solving

• Prevents axle oil leaks that can cause premature bearing failure
• Protects wheel bearings from dirt, dust, and moisture intrusion
• Maintains proper lubrication within the wheel hub assembly
• Reduces the risk of driveline component damage due to contamination
• Helps maintain vehicle safety and performance by ensuring seal integrity

Installation Notes and Tips

• Ensure the shaft and housing bore are clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing bore without distortion
• Verify the seal orientation matches the oil seal design to prevent leaks
• Check shaft surface for wear or damage that could compromise seal performance
• Lubricate the seal lip lightly with compatible grease or oil before installation

Quality Assurance and Warranty

National wheel seals, including part number 5070, are manufactured to meet industry standards for durability and performance. The felt material and precise dimensions ensure consistent sealing under normal operating conditions. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, providing confidence in the product's reliability for automotive driveline and axle applications.