{"product_id":"timken-ha590066-wheel-bearing-and-hub-assembly","title":"Timken HA590066 Wheel Bearing and Hub Assembly - Rear","description":"\u003ch2\u003eTimken HA590066 Wheel Bearing and Hub Assembly Overview\u003c\/h2\u003e\u003cp\u003eThe Timken HA590066 wheel bearing and hub assembly is engineered for reliable performance in select Chevrolet, Pontiac, and Saturn vehicles. Designed as a non-driven hub, this assembly ensures precise fitment and durability for models including the Chevrolet Cobalt, Pontiac G5, and Saturn Ion.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFlange bolt hole quantity: 4 for secure mounting\u003c\/li\u003e\n\u003cli\u003eWheel pilot diameter: 2.224 inches (56.49 mm)\u003c\/li\u003e\n\u003cli\u003eBrake pilot diameter: 2.243 inches (56.96 mm)\u003c\/li\u003e\n\u003cli\u003eWheel stud quantity: 4 for proper wheel attachment\u003c\/li\u003e\n\u003cli\u003eHub pilot diameter: 2.362 inches (60.00 mm)\u003c\/li\u003e\n\u003cli\u003eFlange offset: 3.085 inches (78.35 mm)\u003c\/li\u003e\n\u003cli\u003eFlange diameter: 5.512 inches (140.00 mm)\u003c\/li\u003e\n\u003cli\u003eBolt circle diameter: 3.937 inches (100.00 mm)\u003c\/li\u003e\n\u003cli\u003eDrive type: Non-driven hub assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Timken HA590066 is a wheel bearing and hub assembly designed to meet the exact specifications required for proper fitment on Chevrolet Cobalt, Pontiac G5, and Saturn Ion vehicles. The assembly features a flange with four bolt holes and a matching four-stud wheel configuration, ensuring compatibility with the factory wheel setup. The wheel pilot diameter measures 2.224 inches (56.49 mm), while the brake pilot diameter is slightly larger at 2.243 inches (56.96 mm), providing precise alignment for brake components. The hub pilot diameter of 2.362 inches (60.00 mm) supports the hub's secure seating on the axle flange. With a flange offset of 3.085 inches (78.35 mm) and a flange diameter of 5.512 inches (140.00 mm), this assembly maintains proper wheel positioning and clearance. The bolt circle diameter of 3.937 inches (100.00 mm) matches the vehicle's wheel bolt pattern, ensuring a secure fit.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis Timken wheel bearing and hub assembly is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Cobalt\u003c\/li\u003e\n\u003cli\u003ePontiac G5\u003c\/li\u003e\n\u003cli\u003eSaturn Ion\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed specifically for non-driven wheel positions, making it suitable for front or rear hubs depending on the vehicle's drivetrain configuration.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Hub Assembly\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWheel bearing noise or roughness during driving\u003c\/li\u003e\n\u003cli\u003eExcessive wheel play or looseness\u003c\/li\u003e\n\u003cli\u003eUneven or premature tire wear due to hub misalignment\u003c\/li\u003e\n\u003cli\u003eBrake rotor wobble caused by worn hub pilots\u003c\/li\u003e\n\u003cli\u003eVibration or steering instability related to hub failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the vehicle is securely lifted and supported before beginning installation\u003c\/li\u003e\n\u003cli\u003eClean the hub mounting surface to remove rust and debris for proper seating\u003c\/li\u003e\n\u003cli\u003eTorque flange bolts to manufacturer specifications to avoid premature wear\u003c\/li\u003e\n\u003cli\u003eVerify wheel stud count and bolt pattern compatibility before installation\u003c\/li\u003e\n\u003cli\u003eInspect related components such as brake rotors and calipers during replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eTimken wheel bearing and hub assemblies are manufactured to meet strict quality standards for durability and performance. The HA590066 part number undergoes rigorous testing to ensure proper fit and function on Chevrolet Cobalt, Pontiac G5, and Saturn Ion vehicles. This product is backed by Timken's limited warranty against defects in materials and workmanship, providing confidence in its reliability for driveline and axle applications.\u003c\/p\u003e","brand":"Timken","offers":[{"title":"Default Title","offer_id":45124574183605,"sku":"BCPZ-HA590066","price":155.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/TM_HA590066_Ang_9762e969-d85b-4178-96b0-e7f676d24d08.jpg?v=1775099964","url":"https:\/\/www.partcatalog.com\/products\/timken-ha590066-wheel-bearing-and-hub-assembly","provider":"PartCatalog","version":"1.0","type":"link"}