Timken HA590486 Wheel Bearing and Hub Assembly - Front or Rear

Timken HA590486 Wheel Bearing and Hub Assembly Overview

The Timken HA590486 wheel bearing and hub assembly is engineered for reliable driveline performance in select Buick, Cadillac, Chevrolet, GMC, and Saab vehicles. Designed to meet precise specifications, this assembly ensures proper fitment and durability for models such as the Chevrolet Camaro, Buick LaCrosse, and Cadillac CTS.

• 30 spline quantity for secure axle engagement
• 3 flange bolt holes with a 106 mm (4.713 inch) bolt circle diameter
• 5 wheel studs for stable wheel mounting
• Wheel pilot diameters of 2.632 inches (66.85 mm) and brake pilot diameters of 2.652 inches (67.36 mm)
• Hub pilot diameters measuring 3.595 inches (91.31 mm) for precise hub alignment
• Driven type assembly with a flange offset of 1.660 inches (42.16 mm) and flange diameter of 6.178 inches (157.00 mm)

Detailed Product Description

The Timken HA590486 is a wheel bearing and hub assembly designed specifically for driven axles, providing a critical interface between the wheel and the vehicle’s driveline. Its 30-spline axle interface ensures a secure connection to the axle shaft, while the 3-bolt flange and 5 wheel studs provide a stable mounting platform for the wheel. The dual measurements for wheel pilot and brake pilot diameters accommodate precise fitment to brake rotors and wheels, reducing vibration and improving overall vehicle stability. The hub pilot diameter supports accurate hub centering, which is essential for maintaining proper wheel alignment and minimizing premature wear.

Compatible Vehicles and Applications

This assembly is compatible with a range of vehicles including Buick Allure, LaCrosse, Regal, and Malibu models, Cadillac CTS and XTS, Chevrolet Camaro, Equinox, Impala, and Malibu Limited, GMC Terrain, and Saab 9-5. The Timken HA590486 is designed to meet the specific requirements of these models, ensuring proper fit and function.

Common Issues Addressed by This Assembly

• Eliminates wheel bearing noise caused by wear or damage
• Resolves wheel vibration and wobble issues
• Prevents uneven tire wear due to hub misalignment
• Restores proper wheel mounting and brake rotor alignment
• Addresses axle spline wear affecting driveline performance

Installation Notes and Tips

• Verify vehicle compatibility using make, model, and year before installation
• Ensure proper torque specifications for flange bolts and wheel studs
• Inspect axle splines and hub surfaces for damage prior to assembly
• Use appropriate tools to avoid damaging bearing seals during installation
• Check wheel pilot and brake pilot diameters for correct rotor and wheel fitment

Quality Assurance and Warranty

Timken wheel bearing and hub assemblies are manufactured to meet stringent quality standards, ensuring durability and reliable performance. The HA590486 part number is backed by Timken’s commitment to engineering precision and material quality. Please refer to Timken’s official warranty policy for specific coverage details.