National 455008 Wheel Seal - Rear Inner

National 455008 Wheel Seal Overview

The National 455008 wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with precision, this oil seal features nitrile material construction and specific dimensional attributes to ensure compatibility with various vehicle makes and models requiring a 2.687 inch shaft diameter.

• Inside diameter: 2.687 inches (68.250 mm)
• Outside diameter: 3.881 inches (98.580 mm)
• Housing bore: 3.876 inches (98.450 mm)
• Width: 0.468 inches (11.890 mm)
• Material: Durable nitrile rubber
• Redicoat surface treatment for enhanced wear resistance
• Series: 450000
• Type: 45 oil seal

Detailed Product Description

The National 455008 wheel seal is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and abrasion, making it suitable for demanding automotive driveline environments. The seal’s inside diameter of 2.687 inches (68.250 mm) and outside diameter of 3.881 inches (98.580 mm) are designed to fit shafts and housings with precise tolerances, ensuring a secure seal to prevent lubricant leakage and contamination ingress. The 0.468 inch (11.890 mm) width provides adequate sealing surface area while maintaining compact dimensions. Additionally, the Redicoat coating enhances the seal’s durability by reducing friction and wear during operation. This wheel seal is part of National’s 450000 series, known for consistent quality and performance in axle and driveline sealing applications.

Applications and Problem Solving

• Prevents oil leaks in axle and driveline assemblies
• Protects bearings and internal components from dirt and moisture
• Maintains proper lubrication levels for extended component life
• Reduces risk of seal failure due to heat and abrasion
• Compatible with vehicles requiring a 2.687 inch shaft diameter wheel seal

Installation Notes and Tips

Ensure the shaft and housing surfaces are clean and free of debris before installation. Use appropriate tools to press the seal evenly into the housing bore to avoid distortion. Verify the seal orientation matches the application requirements, with the sealing lip facing the lubricant side. Avoid excessive force during installation to maintain seal integrity.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 455008 part number undergoes rigorous quality control to ensure dimensional accuracy and material consistency. While specific warranty details are not provided, National products typically adhere to OEM quality expectations for driveline sealing components.