{"product_id":"national-511021-wheel-bearing","title":"National 511021 Wheel Bearing - Rear Inner","description":"\u003ch2\u003eReliable Wheel Bearing for Toyota 4Runner, Pickup, T100, and Tacoma\u003c\/h2\u003e\u003cp\u003eThe National 511021 wheel bearing is engineered to provide dependable performance for select Toyota models including the 4Runner, Pickup, T100, and Tacoma. Designed with a double row angular contact configuration, this wheel bearing ensures durability and smooth operation under various driving conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDouble row angular contact design for enhanced load capacity\u003c\/li\u003e\n\u003cli\u003ePrecision bore diameter of 1.575 inches (40 mm)\u003c\/li\u003e\n\u003cli\u003eOuter race diameter of 3.543 inches (90 mm) for secure fitment\u003c\/li\u003e\n\u003cli\u003eWidth of 0.906 inches (23 mm) for optimal compatibility\u003c\/li\u003e\n\u003cli\u003eCompatible with Toyota 4Runner, Pickup, T100, and Tacoma models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Design Features\u003c\/h2\u003e\u003cp\u003eThe National 511021 wheel bearing features a double row angular contact design, which provides improved axial and radial load handling compared to single row bearings. The inner and outer race bores measure 1.575 inches (40 mm), with a consistent width of 0.906 inches (23 mm) ensuring a precise fit. Both inner and outer races have a radius of 0.059 inches (1.5 mm), contributing to the bearing's structural integrity and smooth rotation. The outer race outside diameter is 3.543 inches (90 mm), matching OEM specifications for the compatible Toyota models.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplaces worn or damaged wheel bearings on Toyota 4Runner, Pickup, T100, and Tacoma\u003c\/li\u003e\n\u003cli\u003eAddresses wheel noise and vibration issues caused by bearing wear\u003c\/li\u003e\n\u003cli\u003eRestores proper wheel alignment and rotation stability\u003c\/li\u003e\n\u003cli\u003ePrevents premature tire wear related to faulty bearings\u003c\/li\u003e\n\u003cli\u003eImproves overall driveline performance and safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 511021 wheel bearing, ensure the hub assembly is clean and free of debris. Use proper tools to press the bearing into place without damaging the races. Verify the bearing is seated correctly and rotates smoothly before reassembling the wheel components. It is recommended to inspect related seals and replace them if necessary to maintain bearing longevity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational wheel bearings are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 511021 part number is part of the Rwdb series and meets E-3 type specifications. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in your purchase.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448326258869,"sku":"BCZK-511021","price":77.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_511021_Ang.jpg?v=1774734701","url":"https:\/\/www.partcatalog.com\/products\/national-511021-wheel-bearing","provider":"PartCatalog","version":"1.0","type":"link"}