Timken HA590150 Wheel Bearing and Hub Assembly - Front

Timken HA590150 Wheel Bearing and Hub Assembly Overview

The Timken HA590150 wheel bearing and hub assembly is engineered for reliable driveline performance in select Subaru models. Designed to meet precise specifications, this assembly ensures proper fit and function for vehicles like the Subaru Ascent, B9 Tribeca, Legacy, Outback, and Tribeca.

• 27 spline quantity for secure drivetrain engagement
• 4 flange bolt holes with a 114.30 mm (4.500 inch) bolt circle diameter
• 5 wheel studs for stable wheel mounting
• Wheel pilot diameter of 56.02 mm (2.206 inches) and brake pilot diameter of 58.00 mm (2.283 inches)
• Hub pilot diameter of 83.96 mm (3.306 inches) for precise hub alignment
• Flange diameter of 138.12 mm (5.438 inches) with a flange offset of 46.38 mm (1.826 inches)
• Designed for driven axle applications

Detailed Product Description

The Timken HA590150 is a wheel bearing and hub assembly specifically designed for driven axles in Subaru vehicles including the Ascent, B9 Tribeca, Legacy, Outback, and Tribeca models. This assembly features a 27-spline interface that ensures a secure connection to the drivetrain, supporting smooth power transfer. The 4-bolt flange with a 114.30 mm bolt circle diameter and 5 wheel studs provide a stable mounting surface for the wheel, while the precise wheel pilot and brake pilot diameters ensure proper alignment with the brake components and wheel hub. The hub pilot diameter of 83.96 mm guarantees accurate hub positioning, reducing vibration and wear. The flange offset and diameter are engineered to maintain correct wheel positioning relative to the suspension and brake system.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on compatible Subaru models
• Eliminates wheel noise caused by bearing wear or failure
• Resolves wheel vibration and uneven tire wear issues
• Restores proper wheel alignment and brake rotor positioning
• Addresses ABS sensor malfunctions related to hub assembly defects

Installation Notes and Tips

• Ensure compatibility with Subaru Ascent, B9 Tribeca, Legacy, Outback, and Tribeca before installation
• Use proper torque specifications for flange bolts and wheel studs to avoid premature wear
• Inspect related components such as axle shafts and brake rotors during installation
• Verify spline engagement and hub pilot fit for secure assembly
• Professional installation is recommended to maintain vehicle safety and performance

Quality Assurance and Warranty

Timken wheel bearing and hub assemblies are manufactured to meet strict quality standards for durability and performance. The HA590150 part number undergoes rigorous testing to ensure it meets OEM specifications for fit and function. While specific warranty details may vary, Timken typically offers coverage against defects in materials and workmanship. Consult product documentation or Timken directly for exact warranty terms.