Timken HA590139 Wheel Bearing and Hub Assembly - Front Right

Timken HA590139 Wheel Bearing and Hub Assembly Overview

The Timken HA590139 wheel bearing and hub assembly is engineered for reliable performance in select Lexus models. Designed to meet precise specifications, this assembly ensures proper fit and function for vehicles like the Lexus GS300, GS350, IS250, IS300, IS350, RC300, and RC350.

• 30 spline quantity for secure axle engagement
• 4 flange bolt holes with a 114.19 mm (4.496 inch) bolt circle diameter
• 5 wheel studs for stable wheel mounting
• Wheel pilot diameter of 60.00 mm (2.362 inches) for accurate wheel alignment
• Brake pilot diameter of 62.00 mm (2.441 inches) to support brake component fitment
• Hub pilot diameter of 90.00 mm (3.543 inches) for precise hub centering
• Flange offset of 50.00 mm (1.969 inches) to maintain proper wheel positioning
• Designed for driven axle applications

Technical Details and Specifications

The Timken HA590139 assembly is built to OEM standards, featuring a 30-spline interface that matches the driven axle requirements of compatible Lexus vehicles. The flange includes 4 bolt holes arranged on a 114.19 mm bolt circle diameter, ensuring secure attachment to the vehicle’s suspension components. With 5 wheel studs, this hub assembly supports standard wheel mounting configurations for the specified Lexus models.

Wheel and brake pilot diameters are precisely engineered at 60.00 mm and 62.00 mm respectively, facilitating proper centering of wheels and brake rotors. The hub pilot diameter of 90.00 mm ensures the assembly fits snugly onto the axle hub, reducing vibration and improving stability. The flange offset of 50.00 mm maintains correct wheel positioning relative to the suspension geometry.

Compatible Lexus Models and Applications

This wheel bearing and hub assembly is compatible with the following Lexus vehicles:

• Lexus GS300
• Lexus GS350
• Lexus IS250
• Lexus IS300
• Lexus IS350
• Lexus RC300
• Lexus RC350

It is designed specifically for driven axle applications, making it suitable for rear-wheel or all-wheel drive configurations depending on the model.

Common Issues Addressed by Timken HA590139

• Eliminates wheel bearing noise caused by wear or damage
• Resolves wheel vibration and wobble issues
• Corrects uneven tire wear due to hub misalignment
• Prevents brake rotor misalignment and associated braking problems
• Restores proper wheel mounting and stability

Installation Notes and Tips

When installing the Timken HA590139 wheel bearing and hub assembly, ensure the following:

• Verify compatibility with your Lexus model and drivetrain configuration
• Clean mounting surfaces thoroughly before installation
• Torque flange bolts to manufacturer specifications to avoid premature wear
• Inspect axle splines for damage prior to assembly
• Use proper tools to avoid damaging the wheel studs or pilot diameters

Quality Assurance and Warranty

Timken manufactures this wheel bearing and hub assembly to meet or exceed OEM quality standards. The HA590139 part number is backed by Timken’s quality control processes to ensure durability and reliable performance. Warranty coverage details should be confirmed through Timken or authorized distributors.