Timken HA590731 Wheel Bearing and Hub Assembly - Front

Overview of Timken HA590731 Wheel Bearing and Hub Assembly

The Timken HA590731 wheel bearing and hub assembly is engineered for precise fitment on select BMW models including the 330i, 430i, 530e, 530i, 540i, M340i, X3, and Z4. Designed as a non-driven hub, this assembly ensures reliable wheel support and smooth rotation, meeting the specific flange and pilot diameter requirements of these vehicles.

• Flange bolt hole quantity: 4 for secure mounting
• Wheel pilot diameter: 2.618 inches (66.50 mm)
• Brake pilot diameter: 2.637 inches (67.00 mm)
• Wheel stud quantity: 5 for proper wheel attachment
• Hub pilot diameter: 3.858 inches (98.00 mm)
• Flange offset: 1.732 inches (44.00 mm)
• Flange diameter: 5.511 inches (140.00 mm)
• Drive type: Non-driven hub assembly

Technical Details and Specifications

This Timken wheel bearing and hub assembly (part number HA590731) is designed to match the exact specifications required by various BMW models. The flange bolt hole quantity of 4 and wheel stud quantity of 5 provide a secure and stable connection between the wheel and hub. The wheel pilot diameter of 2.618 inches (66.50 mm) and brake pilot diameter of 2.637 inches (67.00 mm) ensure proper alignment with the brake components and wheel. The hub pilot diameter of 3.858 inches (98.00 mm) supports the hub’s fitment on the axle, while the flange offset of 1.732 inches (44.00 mm) and flange diameter of 5.511 inches (140.00 mm) maintain correct wheel positioning and clearance.

Compatible BMW Models and Applications

This wheel bearing and hub assembly is compatible with a range of BMW vehicles, including the 330i, 430i, 530e, 530i, 540i, M340i, X3, and Z4. It is specifically designed for non-driven wheel positions, making it suitable for front or rear hubs depending on the drivetrain configuration of the vehicle.

• Eliminates wheel vibration and noise caused by worn bearings
• Restores proper wheel alignment and handling
• Prevents premature tire wear due to hub misalignment
• Addresses issues with wheel hub looseness or play
• Ensures secure mounting of wheels with correct stud and bolt hole configuration

Installation Notes and Tips

When installing the Timken HA590731 wheel bearing and hub assembly, ensure the flange bolt holes and wheel studs align correctly with the vehicle’s hub mounting points. Verify the pilot diameters match the brake and wheel components to avoid fitment issues. Proper torque specifications should be followed to secure the assembly and prevent premature wear or failure. This assembly is designed for non-driven hubs, so confirm the correct wheel position before installation.

Quality Assurance and Warranty

Timken is known for manufacturing precision-engineered driveline components. The HA590731 wheel bearing and hub assembly undergoes rigorous quality control to meet OEM standards for durability and performance. While specific warranty details are not provided here, Timken products typically come with a limited warranty covering defects in materials and workmanship. Refer to Timken’s official documentation for complete warranty information.