National 450067 Wheel Seal - Rear

National 450067 Wheel Seal Overview

The National 450067 wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with precision dimensions and durable nitrile material, this oil seal helps maintain proper lubrication and prevent contamination in wheel hubs.

• Inside diameter: 1.500 inches (38.100 mm)
• Outside diameter: 2.506 inches (63.650 mm)
• Housing bore: 2.502 inches (63.550 mm)
• Width: 0.500 inches (12.700 mm)
• Material: Nitrile rubber for resistance to oil and wear
• Redicoat coating for enhanced corrosion protection
• Series: 450000, Type 45 oil seal

Technical Details and Material Specifications

This National 450067 wheel seal is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and greases. The seal features a Redicoat coating that improves corrosion resistance, extending the service life in harsh environments. With an inside diameter of 1.500 inches and an outside diameter of 2.506 inches, it fits shafts and housings with precise tolerances, ensuring a secure seal. The 0.500-inch width provides adequate sealing surface to prevent oil leaks and contamination ingress.

Applications and Common Issues Addressed

This wheel seal is commonly used in driveline and axle assemblies where maintaining oil integrity is critical. It is compatible with various vehicle makes and models requiring a 1.5-inch shaft seal with the specified dimensions. The National 450067 helps address the following issues:

• Prevents oil leaks from wheel hubs and axle assemblies
• Protects bearings from dirt, dust, and moisture contamination
• Reduces premature wear of driveline components
• Maintains lubrication integrity under high temperature and pressure
• Minimizes risk of corrosion in axle housing bores

Installation Notes and Tips

When installing the National 450067 wheel seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal orientation matches the oil side to prevent leaks. Lubricate the sealing lip lightly with compatible grease or oil before installation to reduce initial wear. Proper installation will help maintain the seal’s effectiveness and extend component life.

Quality Assurance and Warranty

National wheel seals, including part number 450067, are manufactured to meet industry standards for durability and performance. The use of nitrile material and Redicoat coating ensures resistance to oil, heat, and corrosion. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.