Timken HA590394 Wheel Bearing and Hub Assembly - Front or Rear

Timken HA590394 Wheel Bearing and Hub Assembly Overview

The Timken HA590394 wheel bearing and hub assembly is engineered for precise fitment and reliable performance in select BMW models. Designed as a non-driven hub, this assembly supports smooth wheel rotation and maintains vehicle stability.

• Flange bolt hole quantity: 4 for secure mounting
• Wheel pilot diameters: 72.6 mm and 2.858 inches for accurate wheel alignment
• Brake pilot diameters: 2.923 inches and 75 mm ensuring proper brake component fit
• Wheel stud quantity: 5 for robust wheel attachment
• Hub pilot diameters: 3.898 inches and 99 mm for precise hub centering
• Flange offset: 1.743 inches and 44.26 mm to maintain correct wheel positioning
• Flange diameter: 145 mm and 5.709 inches for compatibility with OEM specifications
• Drive type: Non-driven, suitable for rear or front non-driven axle applications

Detailed Product Description

The Timken HA590394 wheel bearing and hub assembly is designed to meet the exacting standards required by BMW vehicles such as the 528i xDrive, 535i xDrive, 550i GT xDrive, 640i xDrive Gran Coupe, 750Li xDrive, and X3 among others. This assembly features a 4-hole flange bolt pattern and 5 wheel studs, providing a secure and stable connection between the wheel and the vehicle’s suspension system. The dual measurements for wheel pilot diameter and brake pilot diameter ensure compatibility with various brake and wheel configurations found across the compatible BMW models.

With flange offsets of 1.743 inches and 44.26 mm, the hub assembly maintains proper wheel alignment and clearance, critical for handling and tire wear. The non-driven design indicates this part is intended for wheels not connected directly to the drivetrain, commonly used on front or rear axles depending on the vehicle configuration.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearings causing noise or vibration
• Fixes wheel hub looseness or play affecting steering precision
• Resolves uneven tire wear due to improper hub alignment
• Addresses ABS sensor issues related to hub assembly failure (if applicable)
• Restores proper brake rotor fitment and wheel mounting stability

Installation Notes and Tips

• Ensure compatibility with specific BMW model and year before installation
• Use proper torque specifications for flange bolts and wheel studs to avoid damage
• Inspect surrounding suspension components during replacement for wear or damage
• Verify hub pilot diameters match OEM specifications for correct fit
• Professional installation recommended to maintain vehicle safety and performance

Quality Assurance and Warranty

Timken is a recognized manufacturer of driveline and axle components, known for precision engineering and durability. The HA590394 wheel bearing and hub assembly is manufactured to meet OEM standards for fit and function. While specific warranty details may vary, Timken products typically come with a limited warranty covering defects in materials and workmanship. Refer to Timken’s official documentation for exact warranty terms.