{"product_id":"national-30303-wheel-bearing-and-race-set","title":"National 30303 Wheel Bearing and Race Set - Front or Front Outer","description":"\u003ch2\u003eOverview of National 30303 Wheel Bearing and Race Set\u003c\/h2\u003e\u003cp\u003eThe National 30303 wheel bearing and race set is designed specifically for Toyota Land Cruiser models, providing precise fitment and reliable performance. This taper bearing assembly ensures smooth driveline operation and durability under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Toyota Land Cruiser vehicles\u003c\/li\u003e\n\u003cli\u003ePart number 30303 for accurate identification\u003c\/li\u003e\n\u003cli\u003eIso metric design for standardized fit\u003c\/li\u003e\n\u003cli\u003eBore diameter of 0.6693 inches (17.00 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 1.8504 inches (47.00 mm)\u003c\/li\u003e\n\u003cli\u003eCone length of 0.5512 inches (14.00 mm) and cup length of 0.4724 inches (11.998 mm)\u003c\/li\u003e\n\u003cli\u003eWidth of 0.6004 inches (15.25 mm) for proper seating\u003c\/li\u003e\n\u003cli\u003eIncludes cone and cup with 0.0600 inch (1.524 mm) radius\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Design Details\u003c\/h2\u003e\u003cp\u003eThe National 30303 wheel bearing and race set features an iso metric taper bearing assembly designed to meet the exacting standards required for Toyota Land Cruiser driveline components. The bore size of 0.6693 inches (17 mm) ensures a precise fit on the axle shaft, while the outside diameter of 1.8504 inches (47 mm) matches the hub assembly specifications. The cone and cup lengths of 0.5512 inches (14 mm) and 0.4724 inches (12 mm) respectively provide the correct bearing surface area for load distribution. The 0.0600 inch (1.524 mm) radius on both cone and cup helps reduce stress concentrations, contributing to longer service life. The overall width of 0.6004 inches (15.25 mm) supports proper bearing alignment and function within the wheel hub.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Resolution\u003c\/h2\u003e\u003cp\u003eThis wheel bearing and race set is intended for use in the driveline and axle assembly of Toyota Land Cruiser vehicles. It addresses several common issues related to wheel bearings, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEliminating wheel hub noise caused by worn or damaged bearings\u003c\/li\u003e\n\u003cli\u003eReducing wheel vibration and improving ride quality\u003c\/li\u003e\n\u003cli\u003ePreventing premature bearing failure due to improper fit or wear\u003c\/li\u003e\n\u003cli\u003eRestoring proper wheel alignment and rotational smoothness\u003c\/li\u003e\n\u003cli\u003eEnsuring safe and reliable driveline performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 30303 wheel bearing and race set on a Toyota Land Cruiser, ensure the following:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClean the hub and axle shaft thoroughly before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the cone and cup into place without damage\u003c\/li\u003e\n\u003cli\u003eVerify the bearing is seated fully and evenly to avoid premature wear\u003c\/li\u003e\n\u003cli\u003eApply recommended lubrication to the bearing surfaces\u003c\/li\u003e\n\u003cli\u003eCheck for proper torque specifications on the wheel hub assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational wheel bearings are manufactured to meet industry standards for durability and performance. The 30303 wheel bearing and race set undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product's reliability for Toyota Land Cruiser applications.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448260853941,"sku":"BCZK-30303","price":34.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_30303_Ang.jpg?v=1774734577","url":"https:\/\/www.partcatalog.com\/products\/national-30303-wheel-bearing-and-race-set","provider":"PartCatalog","version":"1.0","type":"link"}