Timken HA590363 Wheel Bearing and Hub Assembly - Rear

Timken HA590363 Wheel Bearing and Hub Assembly Overview

The Timken HA590363 wheel bearing and hub assembly is engineered for reliable driveline performance in select Lexus and Toyota vehicles. Designed to meet precise specifications, this assembly ensures proper fit and function for models including the Highlander, RX350, RX350L, RX450h, RX450hL, and Sienna.

• 26 spline quantity for accurate drivetrain engagement
• 4 flange bolt holes with a 114.30 mm (4.5 inch) bolt circle diameter
• 5 wheel studs for secure wheel mounting
• Wheel pilot diameter of 60.00 mm (2.362 inches) for precise wheel alignment
• Brake pilot diameter of 62.00 mm (2.441 inches) to support brake component fitment
• Hub pilot diameter of 87.00 mm (3.425 inches) for proper hub centering
• Driven type assembly with a flange offset of 65.00 mm (2.559 inches)
• Flange diameter measuring 152.00 mm (5.984 inches) for compatibility with OEM components

Detailed Product Description

The Timken HA590363 wheel bearing and hub assembly is a critical component in the driveline and axle system, designed to provide smooth wheel rotation and support vehicle weight. This assembly features a 26-spline driven design that matches the drivetrain requirements of compatible Lexus and Toyota models. The flange includes 4 bolt holes arranged on a 114.30 mm bolt circle diameter, ensuring secure attachment to the vehicle’s axle. With 5 wheel studs, the assembly accommodates standard wheel mounting configurations.

Precision measurements such as the 60.00 mm wheel pilot diameter and 62.00 mm brake pilot diameter ensure proper alignment of wheels and brake components, reducing vibration and wear. The hub pilot diameter of 87.00 mm centers the hub accurately on the axle, contributing to overall driveline stability. The flange offset of 65.00 mm positions the hub assembly correctly relative to the suspension and brake system.

Compatible Vehicles and Applications

• Compatible with Lexus Highlander, RX350, RX350L, RX450h, RX450hL
• Compatible with Toyota Sienna
• Designed for driven axle applications requiring a 26 spline hub
• Suitable for replacement of worn or damaged wheel bearing and hub assemblies

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before installation
• Verify spline count and bolt pattern match the vehicle specifications
• Clean mounting surfaces to prevent contamination and ensure proper fit
• Torque flange bolts and wheel studs to manufacturer specifications
• Inspect related components such as axle shafts and brake parts during installation

Quality Assurance and Warranty

Timken wheel bearing and hub assemblies are manufactured to meet strict quality standards for durability and performance. The HA590363 part number undergoes rigorous testing to ensure compatibility and reliability in specified Lexus and Toyota models. This product is backed by Timken’s limited warranty against defects in materials and workmanship, providing confidence in its long-term service life.