{"product_id":"4-inch-caster-for-wire-shelving-racks-heavy-duty-set-of-4","title":"4-Inch Caster for Wire Shelving Racks - Heavy Duty Set of 4","description":"\u003cp\u003eIn this review the 4-Inch Caster for Wire Shelving Racks is evaluated as a straightforward replacement for Metro-style wire shelving and similar scaffolding applications; it is best for users who need heavy duty, quiet mobility and a simple swap-in installation. The single biggest reason to buy is the combination of a strong 250 lb load rating per caster and a soft, non-marking thermoplastic rubber tread that protects floors while rolling smoothly on ball bearings. Installation is simple when the shelving tube ID matches the friction ring stem.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem fit:\u003c\/strong\u003e The round friction ring stem with.864 in diameter x 2-3\/16 in length slides into 7\/8 in ID tubing so replacement is fast and tool-free when tubes are compatible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad capacity:\u003c\/strong\u003e Each caster supports up to 250 lbs, delivering a total maximum of 1000 lbs for the set of four and making it suitable for heavy storage loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel material:\u003c\/strong\u003e Thermoplastic rubber treads roll quietly and are non-marking, which helps protect hardwood and tile floors during regular use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwivel action:\u003c\/strong\u003e Ball bearing swivel provides smooth, low-resistance turning for easier repositioning of loaded racks or scaffolding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounted height:\u003c\/strong\u003e The caster achieves approximately 5.3 in mounted height, restoring clearance and mobility to shelving that uses similar 4 in wheel assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis caster set is for people who maintain or repurpose wire shelving, shop storage, or scaffolding and need a dependable retrofit option that matches 7\/8 in ID tubing. Contractors, warehouse stewards, and home workshop owners who value non-marking wheels and a high per-wheel load rating will find this set especially useful.\u003c\/p\u003e\u003cp\u003eUsers who should look elsewhere include those with threaded stem sockets, tubing with a different inner diameter, or who need swivel locks or integrated brakes - this product uses a friction ring stem and does not include braking hardware.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh per-caster load capacity provides robust support for heavy racks and equipment.\u003c\/li\u003e\n\u003cli\u003eSoft, non-marking thermoplastic rubber and ball bearings yield quiet, smooth rolling on multiple floor types.\u003c\/li\u003e\n\u003cli\u003eQuick installation with the grip ring stem makes replacements fast when tube ID is 7\/8 in.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eStem is a round friction ring design and is not threaded, so it will not fit threaded sockets or tubes with different inner diameters.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eRILIDRI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel diameter\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem size\u003c\/td\u003e\n\u003ctd\u003e.864 in x 2-3\/16 in round friction ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits tubing ID\u003c\/td\u003e\n\u003ctd\u003e7\/8 in only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad capacity\u003c\/td\u003e\n\u003ctd\u003e250 lbs per caster, 1000 lbs per set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel material\u003c\/td\u003e\n\u003ctd\u003eThermoplastic rubber, non-marking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounted height\u003c\/td\u003e\n\u003ctd\u003e5.3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 4-Inch Caster set is a practical, good-value replacement for wire shelving and scaffolding when the tubing ID is 7\/8 in and a non-marking, quiet wheel is required. It balances a strong load rating with easy installation and smooth swivel action, making it a sensible choice for workshop, warehouse, and home storage updates.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill these casters fit my Metro shelving?\u003c\/strong\u003e\u003cbr\u003eThey are designed to fit Metro-style and similar racks that use 7\/8 in ID tubing; confirm the inner diameter before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo the wheels mark floors?\u003c\/strong\u003e\u003cbr\u003eThe thermoplastic rubber treads are non-marking and suitable for hardwood and tile floors under normal use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre brakes included?\u003c\/strong\u003e\u003cbr\u003eNo, this set is basic swivel casters with a friction ring stem and does not include locking brakes or threaded stems.\u003c\/p\u003e","brand":"RILIDRI","offers":[{"title":"Default Title","offer_id":48237022347483,"sku":"B0DGT5BWVY","price":35.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61PCQiUKLbL._SL1500.jpg?v=1770706708","url":"https:\/\/gearmusthave.com\/products\/4-inch-caster-for-wire-shelving-racks-heavy-duty-set-of-4","provider":"GearMustHave","version":"1.0","type":"link"}