Timken SP550207 Wheel Bearing and Hub Assembly - Front

Timken SP550207 Wheel Bearing and Hub Assembly Overview

The Timken SP550207 wheel bearing and hub assembly is engineered for reliable performance in Ford F-150 and Lincoln Mark LT trucks. Designed to meet OEM specifications, this driven hub assembly ensures proper fitment and durability for your vehicle's driveline system.

• 45 spline quantity for precise drivetrain engagement
• 4 flange bolt holes and 6 wheel studs for secure mounting
• Wheel pilot diameters of 3.417 inches (86.80 mm) and brake pilot diameters of 3.544 inches (90.03 mm)
• Hub pilot diameters measuring 3.911 inches (99.34 mm) for accurate alignment
• Flange offset of 1.811 inches (46.00 mm) and flange diameter of 7.205 inches (183.00 mm)
• Bolt circle diameter of 5.315 inches (135.00 mm) for compatibility with factory components

Technical Details and Specifications

The Timken SP550207 is a driven wheel bearing and hub assembly designed specifically for Ford F-150 and Lincoln Mark LT models. It features a 45-spline shaft interface that ensures a secure connection to the drivetrain. The assembly includes 4 flange bolt holes and 6 wheel studs, providing a robust mounting platform for the wheel and brake components. The wheel pilot diameter measures 3.417 inches (86.80 mm), while the brake pilot diameter is slightly larger at 3.544 inches (90.03 mm), allowing for precise brake rotor alignment. The hub pilot diameter of 3.911 inches (99.34 mm) ensures proper hub centering on the axle flange. Additionally, the flange offset of 1.811 inches (46.00 mm) and flange diameter of 7.205 inches (183.00 mm) are designed to maintain correct wheel positioning and clearance. The bolt circle diameter of 5.315 inches (135.00 mm) matches factory specifications for secure installation.

Applications and Problem Solving

• Replacement for worn or damaged wheel bearing and hub assemblies on Ford F-150 and Lincoln Mark LT
• Resolves wheel vibration and noise caused by bearing wear
• Addresses wheel hub looseness and play affecting vehicle handling
• Corrects brake rotor misalignment due to hub pilot wear
• Prevents premature tire wear related to hub assembly issues

Installation Notes and Tips

Installation of the Timken SP550207 wheel bearing and hub assembly requires proper tools and adherence to vehicle-specific torque specifications. Ensure the axle shaft splines align correctly with the 45-spline hub interface. Verify that the flange bolt holes and wheel studs match the vehicle’s wheel and brake components. It is recommended to inspect the axle flange and surrounding components for wear or damage before installation. Use a calibrated torque wrench to tighten flange bolts and wheel studs to manufacturer specifications to avoid premature failure.

Quality Assurance and Warranty

Timken manufactures the SP550207 wheel bearing and hub assembly to meet or exceed OEM standards for durability and performance. Each unit undergoes rigorous quality control testing to ensure reliability under normal operating conditions. This part is backed by Timken’s limited warranty against defects in materials and workmanship, providing confidence in its long-term service life when installed and maintained properly.