Timken SP550209 Wheel Bearing and Hub Assembly - Rear

Timken SP550209 Wheel Bearing and Hub Assembly Overview

The Timken SP550209 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 engagement
• 4 flange bolt holes with a 135.21 mm (5.323 in) bolt circle diameter
• 6 wheel studs for stable wheel mounting
• Wheel pilot diameters of 3.424 in and 86.98 mm for accurate wheel alignment
• Brake pilot diameters of 3.543 in and 89.98 mm to support brake component fitment
• Hub pilot diameters of 3.911 in and 99.35 mm for precise hub positioning
• Flange offset of 2.187 in (55.56 mm) and flange diameter of 182.83 mm (7.198 in)
• Designed as a driven hub assembly for optimal driveline integration

Technical Details and Specifications

The Timken SP550209 is a wheel bearing and hub assembly specifically designed for the driveline and axle systems of Ford Expedition and Lincoln Navigator models. Featuring a 33 spline count, this assembly ensures a secure connection to the drivetrain. The flange includes 4 bolt holes arranged on a 135.21 mm bolt circle diameter, providing a stable mounting surface. Six wheel studs allow for proper wheel attachment, while the wheel pilot diameters of 3.424 inches and 86.98 mm ensure precise wheel centering. Brake pilot diameters of 3.543 inches and 89.98 mm support brake rotor alignment, and the hub pilot diameters of 3.911 inches and 99.35 mm guarantee accurate hub positioning. The flange offset of 2.187 inches (55.56 mm) and flange diameter of 182.83 mm (7.198 inches) are designed to maintain proper wheel and brake clearance.

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 as a driven hub assembly in the driveline system, ensuring proper rotational support and load distribution for these full-size SUVs.

Common Issues Addressed by This Assembly

• Eliminates wheel bearing noise caused by wear or damage
• Resolves wheel wobble or play due to worn hub components
• Prevents uneven tire wear from improper wheel alignment
• Restores proper brake rotor alignment and reduces brake pulsation
• Ensures secure wheel mounting to prevent vibration and safety concerns

Installation Notes and Tips

• Verify vehicle compatibility with Ford Expedition or Lincoln Navigator before installation
• Ensure all mounting surfaces are clean and free of debris
• Torque flange bolts and wheel studs to manufacturer specifications
• Inspect related driveline components for wear during installation
• Use proper tools to avoid damage to the hub assembly or vehicle components

Quality Assurance and Warranty

Timken manufactures the SP550209 wheel bearing and hub assembly to meet strict quality standards for durability and performance. While specific warranty details may vary, Timken products typically include coverage against defects in materials and workmanship. Refer to Timken's official warranty documentation for precise terms and conditions.