Timken HA590444 Wheel Bearing and Hub Assembly - Rear

Timken Rear Hub Assembly for Encore, Trax, and Sonic

Timken HA590444 is a rear wheel bearing and hub assembly built for select Buick Encore, Chevrolet Trax, and Chevrolet Sonic applications. It combines OE-developed testing, low runout, and sealed bearing construction to support smooth wheel rotation, reduced noise, and stable braking performance.

Key Features

• Rear wheel bearing and hub assembly for non-driven applications
• 5 wheel studs with a 4-bolt flange pattern
• Wheel pilot diameter: 56.48 mm (2.224 in.)
• Brake pilot diameter: 59.97 mm (2.361 in.)
• Hub pilot diameter: 70.00 mm (2.755 in.)
• Flange diameter: 136.00 mm (5.354 in.)
• Bolt circle diameter: 105.00 mm (4.133 in.)
• Precision bearing profiles and enhanced surface finishes for consistent load handling
• ABS sensor is 100% tested for wheel-speed monitoring

Detailed Description

Timken HA590444 is engineered for rear service on 2013-2022 Buick Encore, 2015-2022 Chevrolet Trax, and 2012-2020 Chevrolet Sonic models. Timken uses OE-developed testing to control the design, materials, and manufacturing process of its hub bearing assemblies, helping maintain consistent performance in everyday driving. The low-runout design helps reduce vibration and noise while supporting braking feel. Premium seals and precision bearing geometry are used to improve contamination resistance, load capacity, bearing life, and fuel efficiency. This part cross-references MOOG 512438 and SKF BR930836 for the same application.

What It Helps Address

• Wheel bearing noise from worn rear hub components
• Vibration or runout at the rear wheel
• ABS wheel-speed signal issues from a failing sensor
• Uneven braking feel related to hub wear
• Excess play or rough rotation in the rear hub assembly

Installation Notes and Tips

Verify rear fitment by year, make, and model before installation. Confirm the 4-bolt flange pattern, 5-stud hub configuration, and the listed pilot diameters match the original part. Inspect the knuckle, axle area, and mounting surfaces for wear or corrosion before installing the new hub assembly. If the ABS warning light is present, diagnose the wheel-speed circuit and connector condition during replacement.

Quality Assurance

Timken manufactures this hub assembly using OE-developed test procedures and controlled materials and processes. The bearing design, seal construction, and ABS sensor testing are used to support consistent fit and performance in rear wheel service.