{"product_id":"sparkwhiz-2-weld-on-trailer-rollers-2-pack-2-steel-ball-bearing-micro-rollers-for-low-profile-docking","title":"SPARKWHIZ 2\" Weld-On Trailer Rollers 2-Pack — 2\" Steel Ball-Bearing Micro Rollers for Low-Profile Docking","description":"\u003cp\u003e\u003cstrong\u003eSPARKWHIZ 2-Pack 2\" Weld-On Trailer Rollers are compact, weld-on steel skid caster wheels designed to protect trailer undercarriages and guide trailers during docking and movement.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese 2\" weld-on micro rollers are built for RVs, fifth-wheels and utility trailers that need low-profile, durable rollers for contact points and guidance. Each roller mounts to a welded base with a grease nipple for straightforward maintenance; the steel construction and ball-bearing design deliver long service life in towing and storage situations. The set includes two weld-on rollers sized to minimize clearance issues while offering consistent rolling performance across contact surfaces.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these rollers help when docking or maneuvering a trailer?\u003c\/h3\u003e\n\u003cp\u003eThe rollers provide a smooth rolling surface that reduces friction where trailer components meet docking surfaces or other equipment. That makes aligning and repositioning trailers easier while lowering wear on fiberglass, aluminum or painted metal contact points.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e2\" roller diameter reduces interference with tight clearances.\u003c\/li\u003e\n  \u003cli\u003eBall-bearing design keeps rotation smooth under load.\u003c\/li\u003e\n  \u003cli\u003eWeld-on mounting creates a secure, permanent attachment point.\u003c\/li\u003e\n  \u003cli\u003eGrease nipple allows quick lubrication to maintain performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key specifications and materials used?\u003c\/h3\u003e\n\u003cp\u003eEach micro roller measures approximately 2\" x 2\" with a mounting base near 3\" x 2\" to offer a compact footprint for welding. The body and base are fabricated from heavy-duty steel to withstand repeated contact and resist deformation over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApproximate roller size: 2\" diameter by 2\" width.\u003c\/li\u003e\n  \u003cli\u003eMounting base: roughly 3\" x 2\" for stable weld attachment.\u003c\/li\u003e\n  \u003cli\u003eMaterial: high-grade steel construction for toughness.\u003c\/li\u003e\n  \u003cli\u003eMaintenance: built-in grease fitting for routine lubrication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I maintain and install these weld-on rollers safely?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires welding the base to a prepared trailer frame or bracket by someone familiar with metalwork and welding safety. After welding, periodically apply grease through the nipple to the bearings to prevent corrosion and keep rotation smooth under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWeld the mounting base to a clean, solid surface using proper procedures.\u003c\/li\u003e\n  \u003cli\u003eConfirm correct alignment before final welding to avoid mispositioning.\u003c\/li\u003e\n  \u003cli\u003eGrease bearings after installation and at regular service intervals.\u003c\/li\u003e\n  \u003cli\u003eInspect rollers for wear or deformation and replace when necessary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These SPARKWHIZ weld-on micro rollers are aimed at RV and trailer owners, repair shops and fabricators who need a compact, durable rolling contact for docking, alignment or undercarriage protection. They suit users who prefer a permanent, weld-mounted solution that’s simple to lubricate and built to last under the demands of towing, storage and repeated contact.\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: Are these rollers weld-on only or do they bolt on?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are designed for weld-on installation only; the base is sized for permanent welding to frames or brackets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I lubricate the bearings without removing the roller?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Each roller has a grease nipple so you can add lubricant while installed to maintain bearing performance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SPARKWHIZ","offers":[{"title":"Default Title","offer_id":67590125715641,"sku":"B0CKLBN93N","price":96.33,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/sparkwhiz-front-packaging-view.jpg?v=1790533724","url":"https:\/\/redleafauto.ca\/products\/sparkwhiz-2-weld-on-trailer-rollers-2-pack-2-steel-ball-bearing-micro-rollers-for-low-profile-docking","provider":"Redleaf Auto","version":"1.0","type":"link"}