{"product_id":"bearing-buddy-42440-chrome-plated-wheel-bearing-protector-2-441-inch-inside-diameter-trailer-hub-cap","title":"Bearing Buddy 42440 Chrome Plated Wheel Bearing Protector, 2.441 Inch Inside Diameter Trailer Hub Cap","description":"\u003cp\u003eThe Bearing Buddy 42440 is a chrome-plated wheel bearing protector designed to keep marine, RV, ATV, and utility trailer hubs properly lubricated and sealed against water and dirt intrusion. It installs directly into the trailer hub in place of the factory dust cap, creating a pressurized bearing cover system rather than a simple static cap. Inside each unit is a spring-loaded piston that maintains a safe internal pressure, keeping grease pushed against the seals while automatically relieving excess pressure through a self-regulating valve so the inner seal is never damaged by overpressurization.\u003c\/p\u003e\u003cp\u003eBearing Buddy 42440 is built from chrome-plated stainless steel for corrosion resistance in both saltwater and freshwater environments, making it suited to boat trailers, campers, horse trailers, and other utility trailers that see regular exposure to moisture. It is sized for hubs with a 2.441 inch inside diameter, with an outside diameter of 2.5 inches and an item thickness of 2.44 inches. Each unit ships individually (1 count) and weighs 1.3 pounds. Installation is straightforward: measure the hub opening to confirm proper fit, then tap the unit into place using a wood block and hammer, checking that it seats securely before towing. The product is manufactured in the USA and quality inspected for a precise fit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Bearing Buddy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 42440\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Number:\u003c\/strong\u003e 2441\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e 3000.0886\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chrome-plated stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e Roller Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 2.441 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Thickness:\u003c\/strong\u003e 2.44 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 10 x 7 x 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lubricant:\u003c\/strong\u003e Grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 650209424406\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United States\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size hub does the Bearing Buddy 42440 fit?\u003c\/strong\u003e The Bearing Buddy 42440 only fits hubs with a 2.441 inch inside diameter, and it has an outside diameter of 2.5 inches and a thickness of 2.44 inches, so measuring the hub opening before installation is important to confirm a secure fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the pressure relief system work?\u003c\/strong\u003e A spring-loaded piston inside the Bearing Buddy 42440 keeps the hub pressurized to push grease against the seals, and a self-regulating valve automatically releases excess grease and pressure so the inner seal is not damaged by overpressurization.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Bearing Buddy 42440 made of?\u003c\/strong\u003e It is made of chrome-plated stainless steel, which is corrosion resistant and suited to saltwater and freshwater trailer use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Bearing Buddy 42440 weigh?\u003c\/strong\u003e This unit weighs 1.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Bearing Buddy 42440 installed?\u003c\/strong\u003e Installation involves measuring the hub for proper fit, then tapping the unit into the hub using a wood block and hammer; no special tools or experience are required, but installers should stop and check fit if it does not seat securely.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes one Bearing Buddy 42440 come with a protective bra or cover?\u003c\/strong\u003e No, the 42440 is the bearing protector unit itself without a protective bra or cover included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Bearing Buddy 42440 sold as a single unit or a pair?\u003c\/strong\u003e It ships as a single unit (unit count of 1), so a pair of hubs would require two units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat vehicles or trailers is the Bearing Buddy 42440 used on?\u003c\/strong\u003e The Bearing Buddy 42440 is used on boat trailers, RVs, ATVs, utility trailers, and horse trailers that use hubs with a 2.441 inch inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat lubricant is used with the Bearing Buddy 42440?\u003c\/strong\u003e It is designed for use with grease as the compatible lubricant, maintained under pressure inside the hub.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Bearing Buddy 42440 manufactured?\u003c\/strong\u003e The Bearing Buddy 42440 is manufactured in the USA.\u003c\/p\u003e","brand":"Bearing Buddy","offers":[{"title":"Default Title","offer_id":49031068647643,"sku":"B-B-42440","price":30.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/71dCR3UQU5L.jpg?v=1785207893","url":"https:\/\/www.goodvibesmarina.com\/products\/bearing-buddy-42440-chrome-plated-wheel-bearing-protector-2-441-inch-inside-diameter-trailer-hub-cap","provider":"Good Vibes Marina","version":"1.0","type":"link"}