Timken HA590518 Wheel Bearing and Hub Assembly - Front

Timken Front Hub Assembly for Toyota 86 and Scion FR-S

Timken HA590518 is a front wheel bearing and hub assembly built for the 2017-2020 Toyota 86 and 2013-2016 Scion FR-S. It is engineered for non-driven front applications and uses OE-developed testing, precision bearing profiles, and low-runout construction to support smooth operation and consistent braking feel.

Key Features

• Front wheel bearing and hub assembly for non-driven applications
• Fits 2017-2020 Toyota 86, front
• Fits 2013-2016 Scion FR-S, front
• 5 wheel studs and 4 flange bolt holes
• Hub pilot diameter: 75.92 mm (2.989 in.)
• Bolt circle diameter: 100.80 mm (3.940 in.)
• Flange diameter: 124.00 mm (4.882 in.)
• Low-runout design to reduce noise and vibration
• ABS sensor testing supports wheel-speed monitoring for ABS systems

Detailed Description

Timken HA590518 is a direct-fit front hub assembly for Toyota 86 and Scion FR-S models listed above. The assembly uses precision bearing geometry and enhanced surface finishes to support load capacity, bearing life, and efficient operation. Premium sealing features help protect internal components from contamination while supporting a secure seal during service.

This part cross-references SKF BR930880 for the same application. If you are replacing a worn front hub on a Toyota 86 or Scion FR-S, Timken HA590518 provides the fitment and dimensional details needed for a proper OE-style replacement.

What It Helps Fix

• Front wheel bearing noise or humming
• Excessive wheel play or looseness
• ABS wheel-speed signal issues related to hub sensor performance
• Brake pulsation or vibration linked to hub runout
• Uneven rolling resistance from a worn front hub assembly

Installation Notes and Tips

Confirm front-position fitment before ordering. Verify hub pilot diameter, bolt circle diameter, flange offset, and wheel stud layout against the original part. Clean the mounting surface thoroughly and inspect surrounding brake and suspension components for wear before installation. For Toyota 86 front hub assembly replacement or Scion FR-S front wheel bearing service, matching the OE dimensions is important for proper fit and ABS operation.

Quality Assurance

Timken uses OE-developed testing to control design, materials, and manufacturing processes for hub bearing assemblies. The brand also tests ABS sensors to monitor wheel speed for anti-lock braking systems, and the bearing construction is built with precision profiles and controlled internal geometry for consistent performance.