Timken HA590518 Wheel Bearing and Hub Assembly - Front

Timken HA590518 Wheel Bearing and Hub Assembly Overview

The Timken HA590518 wheel bearing and hub assembly is engineered for precise fitment on Scion 86 and Toyota FR-S models. Designed as a non-driven hub, this assembly ensures reliable wheel support and smooth rotation, meeting the specific dimensional requirements of these vehicles.

• Compatible with Scion 86 and Toyota FR-S
• Non-driven wheel bearing and hub assembly
• Flange bolt hole quantity: 4 for secure mounting
• Wheel pilot diameter: 2.205 inches (56.01 mm)
• Brake pilot diameter: 2.282 inches (57.96 mm)
• Hub pilot diameter: 2.989 inches (75.92 mm)
• Wheel stud quantity: 5 for proper wheel attachment
• Flange offset: 1.930 inches (49.02 mm)
• Flange diameter: 4.882 inches (124.00 mm)
• Bolt circle diameter: 3.940 inches (100.80 mm)

Detailed Specifications and Features

The Timken HA590518 assembly features a 5-stud wheel configuration and a 4-bolt flange mounting system, designed to match the exact bolt circle diameter of 100.80 mm (3.940 inches). The wheel pilot diameter of 56.01 mm (2.205 inches) and brake pilot diameter of 57.96 mm (2.282 inches) ensure proper alignment with the wheel and brake components. The hub pilot diameter of 75.92 mm (2.989 inches) provides a precise fit to the vehicle’s axle hub, reducing vibration and enhancing stability. The flange offset of 49.02 mm (1.930 inches) is engineered to maintain correct wheel positioning relative to the suspension and brake system.

Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on Scion 86 and Toyota FR-S
• Eliminates wheel vibration and noise caused by bearing wear
• Restores proper wheel alignment and brake rotor positioning
• Addresses issues with uneven tire wear due to hub misalignment
• Prevents wheel hub looseness and potential safety hazards

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Clean the hub mounting surface thoroughly to remove rust and debris. Verify that the bolt circle diameter and flange bolt hole quantity match the vehicle specifications. Use a calibrated torque wrench to tighten flange bolts to manufacturer-recommended torque values. After installation, check for smooth wheel rotation and absence of play or noise.

Quality Assurance and Warranty

Timken wheel bearing and hub assemblies are manufactured to meet strict OEM standards for durability and performance. The HA590518 part number undergoes rigorous quality control to ensure precise fit and long service life. This product is backed by Timken’s limited warranty against defects in materials and workmanship, providing confidence in its reliability for Scion 86 and Toyota FR-S applications.