{"product_id":"better-boat-trailer-hub-grease-caps-1-98-inch-spring-loaded-chrome-plated-with-zerk-fittings-2-pack","title":"Better Boat Trailer Hub Grease Caps 1.98-inch — Spring-Loaded, Chrome-Plated with Zerk Fittings (2-Pack)","description":"\u003cp\u003e\u003cstrong\u003eBetter Boat's 1.98-inch spring-loaded trailer hub grease caps seal and pressurize wheel bearings to keep grease where it belongs while resisting marine corrosion.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you haul a boat or utility trailer, keeping wheel bearings lubricated and free of water and grit is essential. These grease caps are engineered specifically for 1.98-inch axle hubs on boat and utility trailers, using a spring-loaded internal assembly and a chrome-plated carbon-steel body to maintain constant grease pressure and fend off saltwater and roadside corrosion. Each kit includes two grease caps and two dust covers, plus a standard zerk fitting so you can add grease without removing the cap.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these grease caps protect bearings between maintenance intervals?\u003c\/h3\u003e\n\n\u003cp\u003eThe internal spring continuously pushes grease against the bearing, maintaining a protective film that prevents metal-on-metal contact and keeps contaminants out. Because pressure is constant, grease doesn’t migrate away or dry out quickly, extending the effective time between servicing.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSpring-loaded design keeps grease forced into bearings\u003c\/li\u003e\n  \u003cli\u003eStandard zerk fitting allows greasing while installed\u003c\/li\u003e\n  \u003cli\u003eSeals out water, sand, and salt spray\u003c\/li\u003e\n  \u003cli\u003eReduces wear and lowers risk of bearing damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these caps fit my trailer hubs and how do I install them?\u003c\/h3\u003e\n\n\u003cp\u003eThey are sized for hubs with an outer diameter of 1.98 inches and are intended for boat and utility trailers only. If the press fit feels tight, briefly chilling the caps in a freezer for 20 minutes slightly contracts the metal for an easier, non-damaging press fit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMeasure your hub outer diameter to confirm 1.98 inches\u003c\/li\u003e\n  \u003cli\u003ePress-fit installation; freezer trick if tight\u003c\/li\u003e\n  \u003cli\u003eNo tools required for standard press-on fit\u003c\/li\u003e\n  \u003cli\u003eNot for passenger vehicle wheel hubs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and finishes make these suitable for marine use?\u003c\/h3\u003e\n\n\u0026gt;The caps are made from carbon steel with a chrome coating that resists corrosion from saltwater, ramp spray, and outdoor storage. The plated surface sheds moisture and road contaminants while providing a durable exterior that withstands frequent trailering conditions.\n\n\u003cul\u003e\n  \u003cli\u003eCarbon-steel construction for strength\u003c\/li\u003e\n  \u003cli\u003eChrome coating for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eDesigned to stand up to freshwater and saltwater exposure\u003c\/li\u003e\n  \u003cli\u003eIncludes dust covers to reduce grime buildup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I service bearings with these caps installed?\u003c\/h3\u003e\n\n\u003cp\u003eNo need to remove the cap for routine greasing: the built-in zerk fitting accepts a grease gun so you can top up lubricant without disassembly. That makes seasonal maintenance faster and helps keep bearings properly packed and pressurized.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eZerk fitting allows grease gun access while installed\u003c\/li\u003e\n  \u003cli\u003eRefill grease as part of regular trailer maintenance\u003c\/li\u003e\n  \u003cli\u003eMinimizes downtime at the ramp or shop\u003c\/li\u003e\n  \u003cli\u003eMaintains internal pressure between services\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? These grease caps are ideal for boat owners, marina operators, and anyone who regularly tows a utility trailer in wet or salty conditions and wants a low-maintenance way to protect bearings. If your trailer hubs measure 1.98 inches and you need a robust, serviceable cap that fights corrosion and keeps grease in place, this kit from Better Boat gives a practical, durable solution with easy greasing access and a press-fit installation method designed for trailering use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these grease caps fit passenger vehicle hubs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. They are designed for 1.98-inch axle hubs on boat and utility trailers, not for passenger vehicle wheel hubs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I grease bearings without removing the cap?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The caps include a standard zerk fitting so you can add grease with a grease gun while the cap remains installed.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Better Boat","offers":[{"title":"Default Title","offer_id":48020898218145,"sku":"B0CMVJ532L","price":67.68,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/betterboat-front-grease-cap.jpg?v=1791302124","url":"https:\/\/canadiansporting.ca\/products\/better-boat-trailer-hub-grease-caps-1-98-inch-spring-loaded-chrome-plated-with-zerk-fittings-2-pack","provider":"Canadian Sporting","version":"1.0","type":"link"}