Timken HA590136 Wheel Bearing and Hub Assembly - Rear

Timken Rear Wheel Bearing Hub Assembly

Timken HA590136 is a rear wheel bearing and hub assembly built for select Lexus performance sedans and coupes, including Lexus IS250, IS350, IS F, GS350, GS450h, GS460, GS430, GS300, GS F, and RC F applications. It is engineered for driven rear axle use with OE-developed testing and precision bearing construction for consistent wheel support, smooth operation, and stable braking feel.

Key Features

• Rear wheel bearing and hub assembly for driven applications
• 30-spline design with 5 wheel studs and 4 flange bolt holes
• Low runout construction to reduce noise and vibration
• Premium seals with reinforced outer case, ribbed rubber inner diameter, and contamination exclusion features
• Precision bearing profiles and uniform internal geometry for load capacity and bearing life
• Integrated ABS sensor tested to monitor wheel speed for anti-lock braking systems
• Cross-reference part numbers include MOOG 512337 and SKF BR930640

Detailed Description

Timken HA590136 is a rear hub assembly designed for Lexus rear-wheel-drive performance platforms that demand accurate wheel support and dependable ABS signal performance. The hub uses precision-machined bearing surfaces, enhanced surface finishes, and controlled internal geometry to help maintain smooth rotation and consistent fitment. Its low-runout design supports quieter operation, reduced vibration, and more predictable braking response on Lexus IS250, IS350, IS F, GS350, GS450h, GS460, GS430, GS300, GS F, and RC F rear applications. Timken HA590136 is a direct-fit service part for drivers replacing a worn rear wheel bearing hub assembly on these Lexus models.

What It Helps Fix

• Rear wheel noise caused by worn bearing surfaces
• Vibration felt through the chassis or seat at speed
• ABS warning concerns related to wheel speed signal issues
• Loose, rough, or uneven rear hub rotation
• Brake feel changes linked to hub runout or bearing wear

Installation Notes and Tips

Confirm rear fitment by matching the vehicle year, model, and driven axle configuration before installation. Inspect the knuckle, axle splines, and mounting surfaces for wear or corrosion, and verify the ABS connector and sensor routing during service. For Lexus IS250, IS350, IS F, GS350, GS450h, GS460, GS430, GS300, GS F, and RC F rear hub replacement, proper torque procedures and clean mounting surfaces are important for accurate hub seating and long-term performance.

Quality Assurance

Timken manufactures hub bearing assemblies using OE-developed testing and controlled design, material, and process standards. The assembly is built with premium bearings, advanced sealing features, and a tested ABS sensor to support consistent wheel-speed monitoring and durable service life.