Timken HA591050 Wheel Bearing and Hub Assembly - Rear

Overview of Timken HA591050 Wheel Bearing and Hub Assembly

The Timken HA591050 wheel bearing and hub assembly is engineered for precise fitment on Lexus LS430 models. Designed as a non-driven hub, this component ensures reliable wheel support and smooth rotation, critical for vehicle safety and performance.

• Flange bolt hole quantity: 4
• Wheel pilot diameter: 2.362 inches (60.00 mm)
• Brake pilot diameter: 2.441 inches (62.00 mm)
• Wheel stud quantity: 5
• Hub pilot diameter: 3.307 inches (84.00 mm)
• Flange offset: 2.657 inches (67.50 mm)
• Flange diameter: 6.063 inches (154.00 mm)
• Bolt circle diameter: 4.500 inches (114.30 mm)
• Drive type: Non-driven

Technical Details and Specifications

This Timken wheel bearing and hub assembly (part number HA591050) is designed specifically for the Lexus LS430, providing a precise match to OEM specifications. The assembly features a 5-stud wheel configuration and a 4-hole flange bolt pattern, ensuring compatibility with the vehicle’s wheel and brake components. The wheel pilot diameter of 2.362 inches (60 mm) and brake pilot diameter of 2.441 inches (62 mm) provide accurate centering for the wheel and brake rotor, reducing vibration and improving stability. The hub pilot diameter measures 3.307 inches (84 mm), supporting proper hub alignment. The flange offset of 2.657 inches (67.50 mm) and flange diameter of 6.063 inches (154 mm) are engineered to maintain correct wheel positioning relative to the suspension and brake system. This assembly is intended for non-driven wheels, making it suitable for the rear axle of the Lexus LS430.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearings on Lexus LS430
• Eliminates wheel noise caused by bearing wear or failure
• Resolves wheel vibration and uneven tire wear issues
• Restores proper wheel alignment and brake rotor centering
• Addresses hub assembly corrosion or damage

Installation Notes and Tips

When installing the Timken HA591050 wheel bearing and hub assembly, ensure the vehicle is securely lifted and supported. Remove the existing hub assembly carefully to avoid damage to surrounding components. Clean the mounting surface thoroughly before installation to ensure proper fitment. Torque all flange bolts to manufacturer specifications to maintain safety and performance. Verify wheel stud alignment and brake rotor fitment before final assembly. It is recommended to inspect related suspension and brake components during installation for any additional wear or damage.

Quality Assurance and Warranty Information

Timken manufactures the HA591050 wheel bearing and hub assembly to meet strict quality standards, ensuring durability and reliable performance for Lexus LS430 vehicles. The part number HA591050 is backed by Timken’s quality assurance processes, including precision engineering and material testing. Warranty coverage details should be confirmed with the point of purchase or Timken directly, as warranty terms may vary.