{"product_id":"national-hd203-wheel-bearing-and-race-set-rear-inner","title":"National HD203 Wheel Bearing and Race Set - Rear Inner","description":"\u003ch2\u003eNational HD203 Wheel Bearing and Race Set Overview\u003c\/h2\u003e\u003cp\u003eThe National HD203 wheel bearing and race set is designed for precise fitment and reliable performance in driveline and axle applications. This taper bearing set features specific dimensions to ensure compatibility with select vehicle makes and models requiring a 3.75-inch cone bore and 6-inch cup bore.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTaper bearing cone part number 594a and cup part number 592a\u003c\/li\u003e\n\u003cli\u003eCone bore diameter: 3.7500 inches (95.25 mm)\u003c\/li\u003e\n\u003cli\u003eCone length: 1.4300 inches (36.322 mm)\u003c\/li\u003e\n\u003cli\u003eCone radius: 0.2030 inches (5.156 mm)\u003c\/li\u003e\n\u003cli\u003eCup bore diameter: 6.0000 inches (152.4 mm)\u003c\/li\u003e\n\u003cli\u003eCup length: 1.1875 inches (30.163 mm)\u003c\/li\u003e\n\u003cli\u003eCup radius: 0.1250 inches (3.175 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width: 1.5625 inches (39.688 mm)\u003c\/li\u003e\n\u003cli\u003eStandout dimension: 0.3750 inches (9.525 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National HD203 is a precision-engineered taper bearing set designed to meet the exacting standards of driveline and axle wheel bearing applications. The cone and cup components are manufactured to tight tolerances, with a cone bore of 3.75 inches and a cup bore of 6 inches, making this set suitable for vehicles requiring these specific dimensions. The cone length of 1.43 inches and cup length of 1.1875 inches provide the necessary bearing surface for smooth rotation and load distribution. The standout measurement of 0.375 inches ensures proper seating and alignment within the hub assembly. This wheel bearing and race set is compatible with various vehicle makes and models that specify the National HD203 part number for their driveline maintenance and repair needs.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or damaged wheel bearings in compatible vehicles\u003c\/li\u003e\n\u003cli\u003eEliminates wheel hub noise caused by bearing wear\u003c\/li\u003e\n\u003cli\u003eRestores proper wheel alignment and rotation smoothness\u003c\/li\u003e\n\u003cli\u003ePrevents premature axle and hub assembly wear\u003c\/li\u003e\n\u003cli\u003eAddresses vibration issues related to bearing failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the hub and spindle surfaces are clean and free of debris before installation. Use proper tools to press the cone and cup into place without damaging the bearing surfaces. Verify the standout dimension of 0.375 inches to confirm correct bearing preload. It is recommended to check vehicle-specific service manuals for torque specifications and installation procedures to maintain safety and performance standards.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational wheel bearing and race sets are manufactured to meet industry standards for durability and performance. The HD203 part number undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, National products typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":52166026035381,"sku":"BCZK-HD203","price":83.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_HD203_Ang.jpg?v=1775590346","url":"https:\/\/www.partcatalog.com\/products\/national-hd203-wheel-bearing-and-race-set-rear-inner","provider":"PartCatalog","version":"1.0","type":"link"}