Timken SP550221 Wheel Bearing and Hub Assembly - Front

Timken SP550221 Wheel Bearing and Hub Assembly Overview

The Timken SP550221 wheel bearing and hub assembly is engineered for reliable performance on Ford F-150 trucks. Designed to meet precise specifications, this driven hub assembly ensures proper fitment and durability for your vehicle's driveline system.

• 45 spline quantity for secure axle engagement
• 4 flange bolt holes with a 150 mm (5.906 inch) bolt circle diameter
• 7 wheel studs for stable wheel mounting
• Wheel pilot diameter of 86.80 mm (3.417 inches) and brake pilot diameter of 90.03 mm (3.544 inches)
• Hub pilot diameter measuring 99.34 mm (3.911 inches)
• Flange diameter of 190 mm (7.480 inches) with a flange offset of 46.00 mm (1.811 inches)
• Designed for driven axle applications

Detailed Product Description

The Timken SP550221 is a wheel bearing and hub assembly specifically designed for the Ford F-150, providing a precise fit with its 45 spline driven axle interface. The assembly features a 4-bolt flange with a 150 mm bolt circle diameter, ensuring secure attachment to the vehicle’s driveline. With 7 wheel studs, it supports stable and reliable wheel mounting. The wheel pilot diameter of 86.80 mm and brake pilot diameter of 90.03 mm allow for proper alignment of the wheel and brake components, reducing vibration and wear. The hub pilot diameter of 99.34 mm ensures a snug fit on the axle hub, while the flange diameter and offset are optimized for the F-150’s suspension geometry.

Common Applications and Problem Solving

• Replacement for worn or damaged wheel bearing and hub assemblies on Ford F-150 models
• Eliminates wheel vibration caused by bearing wear or hub misalignment
• Resolves noise issues related to failing wheel bearings
• Restores proper wheel mounting and brake alignment
• Prevents premature tire wear due to hub or bearing defects

Installation Notes and Tips

• Ensure compatibility with your specific Ford F-150 model year before installation
• Use proper torque specifications for flange bolts and wheel studs to avoid damage
• Inspect axle splines and mating surfaces for wear or damage prior to assembly
• Clean mounting surfaces thoroughly to ensure proper fit and sealing
• Professional installation is recommended to maintain driveline integrity

Quality Assurance and Warranty

Timken manufactures the SP550221 wheel bearing and hub assembly to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details may vary, Timken products typically come with a limited warranty covering defects in materials and workmanship. Refer to Timken’s official documentation for exact warranty terms applicable to this part.