{"product_id":"timken-ha590580-wheel-bearing-and-hub-assembly-front","title":"Timken HA590580 Wheel Bearing and Hub Assembly - Front","description":"\u003ch2\u003eTimken HA590580 Wheel Bearing and Hub Assembly Overview\u003c\/h2\u003e\u003cp\u003eThe Timken HA590580 wheel bearing and hub assembly is engineered for reliable performance in Subaru vehicles, including Forester, Impreza, WRX, and WRX STI models. Designed to meet precise specifications, this assembly ensures proper fitment and durability for driven axles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e27 spline quantity for secure axle engagement\u003c\/li\u003e\n\u003cli\u003e4 flange bolt holes with a 114.30 mm (4.500 inch) bolt circle diameter\u003c\/li\u003e\n\u003cli\u003e5 wheel studs for stable wheel mounting\u003c\/li\u003e\n\u003cli\u003eWheel pilot diameter of 55.96 mm (2.203 inches) for accurate wheel centering\u003c\/li\u003e\n\u003cli\u003eBrake pilot diameter of 57.94 mm (2.281 inches) to support brake component alignment\u003c\/li\u003e\n\u003cli\u003eHub pilot diameter of 83.95 mm (3.305 inches) for precise hub positioning\u003c\/li\u003e\n\u003cli\u003eFlange diameter of 137.72 mm (5.422 inches) with a flange offset of 46.38 mm (1.826 inches)\u003c\/li\u003e\n\u003cli\u003eDesigned for driven axle applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Timken HA590580 wheel bearing and hub assembly is a critical driveline component designed specifically for Subaru Forester, Impreza, WRX, and WRX STI models. This assembly features a 27-spline driven axle interface, ensuring a secure connection between the axle shaft and hub. The 4-bolt flange with a 114.30 mm bolt circle diameter provides a robust mounting surface, while the 5 wheel studs accommodate standard wheel configurations. The wheel pilot diameter of 55.96 mm and brake pilot diameter of 57.94 mm ensure proper centering of wheels and brake rotors, reducing vibration and improving braking performance. Additionally, the hub pilot diameter of 83.95 mm supports accurate hub alignment within the vehicle’s suspension system. The flange offset of 46.38 mm is designed to maintain correct wheel positioning relative to the vehicle’s suspension geometry.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or damaged wheel bearing and hub assemblies on Subaru Forester, Impreza, WRX, and WRX STI\u003c\/li\u003e\n\u003cli\u003eEliminates wheel vibration caused by bearing wear or hub misalignment\u003c\/li\u003e\n\u003cli\u003eResolves noise issues such as humming or grinding from the wheel area\u003c\/li\u003e\n\u003cli\u003eRestores proper wheel and brake rotor centering to improve braking performance\u003c\/li\u003e\n\u003cli\u003eAddresses axle spline wear affecting drivetrain engagement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is securely lifted and supported before beginning installation. Verify that the spline count (27 splines) matches the axle shaft. Clean the mounting surfaces thoroughly to prevent contamination and ensure proper fitment. Torque flange bolts to manufacturer specifications to maintain assembly integrity. Check wheel stud condition and replace if necessary to ensure safe wheel mounting.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eTimken wheel bearing and hub assemblies are manufactured to meet or exceed OEM standards for fit, form, and function. The HA590580 part number undergoes rigorous quality control to ensure durability and performance in demanding driving conditions. Warranty coverage details should be confirmed with the point of purchase or Timken directly.\u003c\/p\u003e","brand":"Timken","offers":[{"title":"Default Title","offer_id":52180596588725,"sku":"BCPZ-HA590580","price":192.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/TM_HA590580_Ang.jpg?v=1775591781","url":"https:\/\/www.partcatalog.com\/products\/timken-ha590580-wheel-bearing-and-hub-assembly-front","provider":"PartCatalog","version":"1.0","type":"link"}