Timken HA590227 Wheel Bearing and Hub Assembly - Front or Rear

Timken HA590227 Wheel Bearing and Hub Assembly Overview

The Timken HA590227 wheel bearing and hub assembly is engineered for reliable driveline performance in select Buick, Chevrolet, GMC, and Saturn vehicles. Designed to meet precise specifications, this assembly ensures proper fitment and durability for models like the Acadia, Enclave, Outlook, and Traverse.

• 33 spline quantity for secure axle engagement
• 3 flange bolt holes with a 132 mm (5.197 inch) bolt circle diameter
• 6 wheel studs for stable wheel mounting
• Wheel pilot diameters of 74.34 mm (2.927 inch) and brake pilot diameters of 75.55 mm (2.974 inch)
• Flange diameter of 168.83 mm (6.647 inch) with a flange offset of 47.15 mm (1.856 inch)
• Hub pilot diameter of 95.00 mm (3.740 inch)
• Designed for driven axle applications

Detailed Specifications and Compatibility

The Timken HA590227 assembly is specifically designed for driven axle configurations, featuring a 33-spline axle interface that ensures a precise and secure connection. The flange includes three bolt holes arranged on a 132 mm bolt circle diameter, supporting six wheel studs for optimal wheel attachment. The wheel pilot diameters of 74.34 mm and brake pilot diameters of 75.55 mm provide accurate alignment for brake components and wheels, reducing vibration and wear. The flange diameter of 168.83 mm and offset of 47.15 mm are engineered to maintain proper wheel positioning relative to the suspension and steering components.

This assembly is compatible with a range of GM vehicles, including Buick Acadia and Acadia Limited, Chevrolet Traverse, GMC Acadia and Acadia Limited, Saturn Outlook, and GMC Enclave. The precise fitment ensures that the HA590227 meets factory specifications for these models, supporting safe and reliable driveline operation.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies
• Eliminates wheel noise caused by bearing wear
• Resolves wheel vibration and uneven tire wear issues
• Restores proper wheel alignment and brake component fitment
• Addresses axle spline wear affecting driveline performance

Installation Notes and Tips

Proper installation of the Timken HA590227 requires attention to torque specifications for flange bolts and wheel studs. Ensure the hub pilot diameter seats correctly to avoid misalignment. It is recommended to inspect axle splines and clean mounting surfaces before assembly. Use appropriate tools to avoid damage to the bearing and hub components during installation.

Quality Assurance and Warranty

Timken wheel bearing and hub assemblies are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The HA590227 part number is backed by Timken's quality assurance processes. Warranty coverage details should be confirmed through Timken or authorized distributors to ensure compliance with vehicle and part-specific requirements.