Timken SP550201 Wheel Bearing and Hub Assembly - Front

Timken SP550201 Wheel Bearing and Hub Assembly Overview

The Timken SP550201 wheel bearing and hub assembly is engineered for reliable performance in Ford Expedition and Lincoln Navigator vehicles. Designed to meet precise specifications, this driven hub assembly ensures proper fitment and durability for your driveline system.

• 33 spline quantity for secure drivetrain connection
• 3 flange bolt holes and 5 wheel studs for stable mounting
• Wheel pilot diameters of 3.415 inches (86.74 mm) and brake pilot diameters of 3.635 inches (92.33 mm)
• Hub pilot diameter of 3.910 inches (99.31 mm) for accurate alignment
• Flange offset of 1.957 inches (49.71 mm) and flange diameter of 7.134 inches (181.20 mm)
• Bolt circle diameter of 5.316 inches (135.03 mm) for compatibility with OEM components

Technical Details and Specifications

The Timken SP550201 is a driven wheel bearing and hub assembly designed specifically for select Ford Expedition and Lincoln Navigator models. It features a 33 spline count that matches the axle shaft for optimal torque transfer. The assembly includes 3 flange bolt holes and 5 wheel studs, providing a secure and stable connection to the vehicle’s wheel and brake system. The wheel pilot diameters of 3.415 inches (86.74 mm) and brake pilot diameters of 3.635 inches (92.33 mm) ensure precise centering of the wheel and brake components, reducing vibration and wear. The hub pilot diameter of 3.910 inches (99.31 mm) further supports proper alignment within the hub assembly. Additionally, the flange offset of 1.957 inches (49.71 mm) and flange diameter of 7.134 inches (181.20 mm) are designed to maintain correct wheel positioning relative to the suspension and brake system. The bolt circle diameter of 5.316 inches (135.03 mm) matches OEM specifications for direct replacement.

Compatible Vehicles and Applications

This Timken wheel bearing and hub assembly is compatible with the following vehicles:

• Ford Expedition
• Lincoln Navigator

It is intended for use in driveline and axle systems where a driven hub assembly is required, ensuring proper wheel rotation and load support.

Common Issues Addressed by Timken SP550201

• Eliminates wheel bearing noise caused by wear or damage
• Resolves wheel wobble or vibration due to hub misalignment
• Prevents premature brake rotor wear by maintaining correct brake pilot alignment
• Restores secure wheel mounting with correct flange bolt and stud configuration
• Improves drivetrain performance by ensuring proper spline engagement

Installation Notes and Tips

When installing the Timken SP550201 wheel bearing and hub assembly, ensure the following:

• Verify compatibility with your specific Ford Expedition or Lincoln Navigator model year
• Use proper torque specifications for flange bolts and wheel studs to avoid damage
• Inspect axle splines and mating surfaces for wear before installation
• Clean mounting surfaces thoroughly to ensure proper fit and alignment
• Follow manufacturer guidelines for bearing lubrication and break-in procedures

Quality Assurance and Warranty

Timken manufactures the SP550201 wheel bearing and hub assembly to meet stringent quality standards. Each unit undergoes rigorous testing to ensure durability and performance under normal operating conditions. While specific warranty details may vary, Timken typically offers coverage against defects in materials and workmanship. Consult Timken’s official documentation or authorized distributors for exact warranty terms related to this part number.