Timken HA590125 Wheel Bearing and Hub Assembly - Front

Timken HA590125 Wheel Bearing and Hub Assembly Overview

The Timken HA590125 wheel bearing and hub assembly is engineered for reliable driveline performance on select Infiniti models. Designed to meet precise specifications, this assembly ensures proper fit and function for vehicles such as the Infiniti EX35, FX35, G35, Q50, and others.

• 27 spline quantity for secure axle engagement
• 5 wheel studs for stable wheel mounting
• 4 flange bolt holes with a 114.3 mm (4.5 inch) bolt circle diameter
• Wheel pilot diameter of 65.96 mm (2.597 inches) for accurate wheel alignment
• Brake pilot diameter of 67.95 mm (2.675 inches) to support brake component fitment
• Hub pilot diameter of 92.96 mm (3.660 inches) for precise hub centering
• Flange diameter of 136 mm (5.354 inches) with a flange offset of 40.65 mm (1.600 inches)
• Designed for driven axle applications

Detailed Product Description

The Timken HA590125 wheel bearing and hub assembly is a critical component in the driveline and axle system, specifically designed for driven wheels on various Infiniti models including the EX35, FX37, G37, Q60, and QX70. This assembly features a 27-spline interface that ensures a secure connection to the axle shaft, while the 5 wheel studs provide a stable mounting surface for the wheel. The flange includes 4 bolt holes arranged on a 114.3 mm bolt circle diameter, matching factory specifications for proper installation.

Wheel and brake pilot diameters are engineered to maintain precise alignment of the wheel and brake components, reducing vibration and wear. The hub pilot diameter centers the hub assembly on the axle flange, contributing to smooth rotation and extended bearing life. The flange offset and diameter are designed to maintain correct wheel positioning relative to the suspension and brake system.

Compatible Infiniti Models and Applications

• Infiniti EX35, EX37
• Infiniti FX35, FX37, FX45, FX50
• Infiniti G25, G35, G37
• Infiniti M35, M37, M45, M56
• Infiniti Q40, Q50, Q60, Q70, Q70L
• Infiniti QX50, QX70

Common Issues Addressed by This Assembly

• Wheel bearing noise or roughness during rotation
• Excessive wheel play or looseness
• Uneven tire wear due to misalignment
• ABS sensor malfunction related to hub assembly
• Vibration or wobbling at higher speeds

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before removal
• Clean mounting surfaces to prevent contamination and ensure proper fit
• Torque flange bolts and wheel studs to manufacturer specifications
• Inspect axle splines for wear or damage prior to installation
• Verify ABS sensor connections if applicable

Quality Assurance and Warranty

Timken wheel bearing and hub assemblies are manufactured to meet or exceed OEM standards for durability and performance. The HA590125 assembly undergoes rigorous quality control to ensure precise fitment and long service life. Warranty coverage details should be confirmed with the point of purchase or Timken directly.