National 200354 Wheel Seal - Front Inner

National 200354 Wheel Seal Overview

The National 200354 wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with precision, this oil seal helps maintain proper lubrication and prevents contaminants from entering the wheel hub assembly.

• Inside diameter: 1.750 inches (44.450 mm)
• Outside diameter: 2.722 inches (69.140 mm)
• Housing bore: 2.718 inches (69.040 mm)
• Width: 0.359 inches (9.120 mm)
• Material: Durable nitrile rubber for resistance to oil and wear
• Series: 200000, Type: 200 oil seal

Technical Details and Specifications

The National 200354 wheel seal is constructed from nitrile, a material known for its excellent resistance to petroleum-based oils and greases, making it suitable for automotive axle and driveline environments. With an inside diameter of 1.750 inches and an outside diameter of 2.722 inches, this seal fits shafts and housings with corresponding dimensions, ensuring a tight and secure fit. The 0.359-inch width provides adequate sealing surface to prevent oil leakage and contamination ingress.

This part is part of National's 200000 series, designed specifically for oil sealing applications in wheel hubs and axle assemblies. The precise housing bore dimension of 2.718 inches ensures compatibility with standard axle housings requiring a 69.040 mm bore.

Applications and Problem Solving

The National 200354 wheel seal is commonly used in automotive driveline and axle assemblies to address several issues:

• Prevents oil leaks from wheel hubs and axle assemblies
• Protects bearings and internal components from dirt and moisture
• Maintains lubrication integrity for extended component life
• Reduces risk of premature wear due to contamination
• Ensures proper sealing in vehicles requiring a 1.750-inch shaft diameter and 2.722-inch outside diameter seal

Installation Notes and Tips

When installing the National 200354 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. Lubricate the seal lip lightly with compatible oil before installation to reduce initial wear. Verify the seal orientation matches the oil sealing direction to optimize performance.

Quality Assurance and Warranty

National manufactures the 200354 wheel seal to meet industry standards for durability and performance. The nitrile material and precise dimensions contribute to consistent sealing under typical automotive operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against manufacturing defects, ensuring reliability for professional automotive applications.