Timken HA590666 Wheel Bearing and Hub Assembly - Front or Rear

Overview of Timken HA590666 Wheel Bearing and Hub Assembly

The Timken HA590666 wheel bearing and hub assembly is engineered for reliable performance in select Buick, Cadillac, and Chevrolet vehicles. Designed to meet precise specifications, this component ensures proper fit and function for models like the Buick LaCrosse, Cadillac CT4, and Chevrolet Malibu.

• Flange bolt hole quantity: 3 for secure mounting
• Wheel pilot diameter: 70.10 mm for accurate wheel alignment
• Brake pilot diameters: 2.779 inches and 70.60 mm for compatibility with brake components
• Five wheel studs for stable wheel attachment
• Hub pilot diameters: 3.591 inches and 91.20 mm ensuring proper hub fit
• Flange offset measurements: 1.653 inches and 42.00 mm for correct positioning
• Flange diameter: 146.00 mm (5.748 inches) for structural integrity
• Bolt circle diameter: 115.10 mm (4.531 inches) matching vehicle specifications

Detailed Product Description

The Timken HA590666 wheel bearing and hub assembly is designed to provide a precise fit for specific Buick, Cadillac, and Chevrolet models, including the Cadillac CT4, Buick Envision, and Chevrolet Regal Sportback. This assembly features a flange with three bolt holes and five wheel studs, ensuring a secure connection to the vehicle’s driveline system. The dual brake pilot diameters of 2.779 inches and 70.60 mm accommodate brake components, while the wheel pilot diameter of 70.10 mm supports proper wheel centering. The hub pilot diameters of 3.591 inches and 91.20 mm maintain alignment and reduce vibration. Flange offset and diameter measurements are engineered to match factory specifications, contributing to consistent handling and safety.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on Buick LaCrosse and Regal TourX
• Addressing wheel vibration or noise issues in Cadillac CT4 and Chevrolet Malibu
• Resolving wheel alignment problems caused by hub wear in Buick Envision
• Improving brake component fitment and performance on Chevrolet Regal Sportback
• Restoring driveline stability and safety in compatible vehicles

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Verify that the flange bolt hole quantity and wheel stud count match the vehicle’s specifications. Clean the hub mounting surface thoroughly to prevent contamination. Use proper torque specifications for flange bolts and wheel studs to maintain assembly integrity. It is recommended to inspect related components such as brake rotors and suspension parts during installation.

Quality Assurance and Warranty

Timken is a recognized manufacturer of driveline components, known for meeting industry standards. The HA590666 wheel bearing and hub assembly is manufactured to precise tolerances to ensure durability and performance. While specific warranty details are not provided here, Timken products typically come with manufacturer-backed warranties covering defects in materials and workmanship.