National 203-FF Power Steering Pump Shaft Bearing

Overview of National 203-FF Power Steering Pump Shaft Bearing

The National 203-FF power steering pump shaft bearing is engineered for reliable performance in a wide range of vehicles including Audi, BMW, Ford, Honda, Toyota, and Volkswagen models. Designed as a single row radial ball bearing, it ensures smooth operation and durability for your power steering system.

• Single row radial ball bearing design
• Bore diameter: 0.669 inch (17.000 mm)
• Outer diameter: 1.575 inch (40.000 mm)
• Width: 0.472 inch (12.000 mm)
• Inner race outside diameter: 5.512 inch (140.000 mm)
• Compatible with various makes and models including 4Runner, 190E, Accord, and Jetta

Technical Specifications and Design Features

The National 203-FF bearing features a precise bore size of 0.669 inches (17 mm) and an outer diameter of 1.575 inches (40 mm), making it suitable for power steering pump shafts requiring these dimensions. The bearing’s single row radial design supports radial loads effectively, while the ball bearing construction reduces friction and wear. Both the inner and outer races have a width of 0.472 inches (12 mm), with a radius of 0.024 inches (0.610 mm), ensuring a balanced fit and smooth rotation within the power steering pump assembly.

Compatible Vehicles and Applications

This power steering pump shaft bearing is compatible with a broad range of vehicles, including but not limited to:

• Audi 4000 Quattro and 5000 Quattro
• BMW 190E and 300CE
• Ford Bronco and F-150
• Honda Accord and Civic
• Toyota 4Runner and Corolla
• Volkswagen Jetta and Golf

Use the National 203-FF bearing to replace worn or damaged bearings in power steering pumps for these models to restore proper steering function.

Common Issues Addressed by the 203-FF Bearing

• Excessive steering pump noise due to worn bearings
• Reduced steering responsiveness or stiffness
• Vibration or rough operation in the power steering system
• Premature bearing failure causing pump damage
• Leaking or damaged bearing seals affecting pump performance

Installation Notes and Tips

When installing the National 203-FF power steering pump shaft bearing, ensure the following:

• Clean the bearing housing and shaft thoroughly before installation
• Use proper tools to press the bearing into place without damaging the races
• Verify the bearing orientation matches the original setup
• Check for smooth rotation after installation before reassembling the pump
• Consult vehicle-specific service manuals for torque specifications and procedures

Quality Assurance and Warranty

National bearings are manufactured to meet industry standards for durability and precision. The 203-FF bearing undergoes strict quality control to ensure consistent performance in power steering applications. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s reliability.