{"title":"W\/ 4\" Wheels · Ships Fast","description":"\u003cdiv class=\"chq-collection-seo\" id=\"chq-seo-content\"\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is Duratek rubber?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Duratek is a premium rubber compound engineered for extended tread life compared to standard TPR. It resists flat-spotting and chunk-out under sustained heavy loads.\"}}, {\"@type\": \"Question\", \"name\": \"How is Duratek different from standard TPR?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Duratek uses a higher-grade rubber compound that lasts longer and resists wear patterns from stationary loading, making it better for shelving that sits in one place.\"}}, {\"@type\": \"Question\", \"name\": \"Are Duratek casters non-marking?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The Duratek compound is non-marking and floor-safe on all hard surfaces.\"}}]}]}\u003c\/script\u003e\n\u003cstyle\u003e\n#chq-seo-content{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif!important;color:#1a1a1a!important;line-height:1.55!important;max-width:900px!important;margin:0 auto!important;padding:1.5rem 1rem!important}#chq-seo-content h2{font-size:1.3rem!important;font-weight:700!important;color:#016367!important;margin:0 0 .5rem!important}#chq-seo-content p{font-size:.92rem!important;color:#333!important;margin:0 0 .8rem!important}.chq-specs{font-size:.84rem!important;color:#555!important;background:#f7faf9!important;border-left:3px solid #016367!important;padding:.75rem 1rem!important;margin:0 0 1.2rem!important;border-radius:0 8px 8px 0!important;line-height:1.6!important}.chq-faq-section{margin:1.2rem 0!important}.chq-faq-section h3{font-size:1rem!important;font-weight:700!important;color:#016367!important;margin:0 0 .5rem!important}.chq-details{border-bottom:1px solid #eee!important}.chq-details summary{cursor:pointer!important;font-weight:600!important;font-size:.9rem!important;padding:.65em 0!important;color:#1a1a1a!important;list-style:none!important}.chq-details summary::-webkit-details-marker{display:none!important}.chq-chevron{color:#016367!important;font-weight:700!important;margin-left:.3em!important}.chq-details[open] .chq-chevron{transform:rotate(90deg)!important;display:inline-block!important}.chq-details-body{font-size:.86rem!important;color:#444!important;padding:0 0 .8em 1em!important;line-height:1.6!important}.chq-xlinks{margin:1.2rem 0!important}.chq-xlinks h3{font-size:.95rem!important;font-weight:700!important;color:#016367!important;margin:0 0 .5rem!important}.chq-xlinks-grid{display:flex!important;flex-wrap:wrap!important;gap:.5rem!important}.chq-xlink{display:inline-block!important;font-size:.82rem!important;font-weight:600!important;padding:.3em .8em!important;border-radius:40px!important;background:#e6f4f1!important;color:#016367!important;text-decoration:none!important;white-space:nowrap!important;transition:background .2s!important}.chq-xlink:hover{background:#cce8e3!important}.chq-trust{font-size:.82rem!important;color:#666!important;margin-top:1rem!important;padding-top:.8rem!important;border-top:1px solid #eee!important}\n\u003c\/style\u003e\n\u003ch2\u003e4-Inch Duratek Rubber Threaded Stem Casters\u003c\/h2\u003e\n\u003cp\u003e4-inch Duratek rubber threaded stem casters. Premium rubber compound on polypropylene core for long tread life and quiet, non-marking performance. Rated up to 300 lb per caster. Ideal for wire shelving, utility racks, and institutional equipment.\u003c\/p\u003e\n\u003cdiv class=\"chq-specs\"\u003eWheel: 4″ | Tread: Duratek rubber | Core: Polypropylene | Mount: Threaded stem | Load: Up to 300 lb | Bearing: Ball | Swivel \u0026amp; rigid\u003c\/div\u003e\n\u003cdiv class=\"chq-faq-section\" id=\"chq-faq\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails class=\"chq-details\"\u003e\u003csummary\u003eWhat is Duratek rubber? \u003cspan class=\"chq-chevron\"\u003e›\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"chq-details-body\"\u003eDuratek is a premium rubber compound engineered for extended tread life compared to standard TPR. It resists flat-spotting and chunk-out under sustained heavy loads.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"chq-details\"\u003e\u003csummary\u003eHow is Duratek different from standard TPR? \u003cspan class=\"chq-chevron\"\u003e›\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"chq-details-body\"\u003eDuratek uses a higher-grade rubber compound that lasts longer and resists wear patterns from stationary loading, making it better for shelving that sits in one place.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"chq-details\"\u003e\u003csummary\u003eAre Duratek casters non-marking? \u003cspan class=\"chq-chevron\"\u003e›\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv class=\"chq-details-body\"\u003eYes. The Duratek compound is non-marking and floor-safe on all hard surfaces.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chq-xlinks\"\u003e\n\u003ch3\u003eRelated Collections\u003c\/h3\u003e\n\u003cdiv class=\"chq-xlinks-grid\"\u003e\n\u003ca href=\"\/collections\/duratek-rubber-ppr-19\" class=\"chq-xlink\"\u003eAll Duratek Rubber\u003c\/a\u003e\n\u003ca href=\"\/collections\/rubber-casters\" class=\"chq-xlink\"\u003eRubber Caster Hub\u003c\/a\u003e\n\u003ca href=\"\/collections\/w-5-wheels-254\" class=\"chq-xlink\"\u003e5-Inch Duratek\u003c\/a\u003e\n\u003ca href=\"\/collections\/w-6-wheels-84\" class=\"chq-xlink\"\u003e6-Inch Duratek\u003c\/a\u003e\n\u003ca href=\"\/collections\/w-8-wheels-73\" class=\"chq-xlink\"\u003e8-Inch Duratek\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"chq-trust\"\u003e\u003cp\u003eCasterHQ — nationwide industrial caster and wheel supply. ISO-certified, ANSI-tested. Same-day dispatch on in-stock orders. Call 844-439-4335 or \u003ca href=\"\/pages\/contact-us\" style=\"color:#016367!important\"\u003econtact us\u003c\/a\u003e for expert sizing help.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"durastar-medium-heavy-duty-s34-series-4-x-2-duratek-high-tech-rubber-rigid-caster-450-lb-capacity-4-x-4-1-2-stainless-top-plate","title":"4\" x 2\" Duratek Rubber Rigid Stainless Caster – 450 lb | CasterHQ","description":"\u003c!-- Main Container --\u003e\n\u003cdiv style=\"box-shadow: 0px 4px 8px rgba(0,0,0,0.1); padding: 20px; border-radius: 12px;\"\u003e\n    \u003c!-- Product Header --\u003e\n    \u003ch1 style=\"color: rgb(1, 99, 103); font-weight: bold;  text-align: center;\"\u003e\n        Durastar Medium Heavy Duty S34 Series - 4\" x 2\" Duratek High Tech Rubber Rigid Caster - 450 lb Capacity, 4\" x 4-1\/2\" Stainless Top Plate\n    \u003c\/h1\u003e\n    \u003chr id=\"horizontalrule\"\u003e\n    \n    \u003c!-- Product Features Section --\u003e\n    \u003ch2 style=\"color: #8AC973; font-weight: bold; \"\u003eProduct Features\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duratek High Tech Rubber for durability and smooth performance\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 450 lb capacity per caster, designed for heavy-duty applications\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eTop Plate:\u003c\/strong\u003e 4\" x 4-1\/2\" stainless top plate size for compatibility with various equipment\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong style=\"background-color: initial; letter-spacing: 0px;\"\u003eApplications:\u003c\/strong\u003e\u003cspan style=\"background-color: initial; letter-spacing: 0px;\"\u003e Ideal for industrial, medical, and warehouse use\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003c!-- Product Description --\u003e\n    \u003cp\u003e\n        The Durastar Medium Heavy Duty S34 Series 4\" x 2\" Duratek High Tech Rubber Rigid Caster offers exceptional durability and reliability for heavy-duty applications. With a robust 450 lb capacity, this caster is engineered to withstand demanding environments such as warehouses, factories, and medical settings. The high-tech Duratek rubber wheel ensures a smooth, quiet ride, while the design allows for easy movement and maneuverability.\n    \u003c\/p\u003e\n    \u003cp\u003e\n        Featuring a 4\" x 4-1\/2\" stainless top plate, this caster is designed for versatile compatibility with a wide range of equipment, making it a perfect fit for your mobility solutions. Whether you're moving heavy machinery or medical carts, the Durastar S34 Series delivers superior performance and ease of use.\n    \u003c\/p\u003e\n    \u003cp\u003e\n        Durastar's commitment to quality ensures that each caster is crafted with precision and durability in mind. The high-tech rubber provides optimal floor protection while reducing wear and tear. Upgrade your operations with a caster designed to handle the toughest tasks with ease and reliability.\n    \u003c\/p\u003e\n\n    \u003c!-- Call to Action --\u003e\n    \u003ch2 style=\"color: #8AC973; font-weight: bold; \"\u003eEnhance Your Mobility Solutions with Durastar Casters\u003c\/h2\u003e\n    \u003cp\u003e\n        Choose the Durastar Medium Heavy Duty S34 Series for your next mobility solution. With unmatched durability and superior performance, these casters are the perfect choice for heavy-duty applications. Shop now and experience the difference!\n    \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Durastar","offers":[{"title":"Roller Bearing","offer_id":50130942591288,"sku":"S34-R-420-PPR-03","price":53.0,"currency_code":"USD","in_stock":true},{"title":"Precision Bearing","offer_id":50130942558520,"sku":"S34-R-420-PPR-03","price":61.0,"currency_code":"USD","in_stock":true},{"title":"Stainless Roller Bearing","offer_id":52317417144632,"sku":"S34-R-420-PPR-03","price":68.0,"currency_code":"USD","in_stock":true},{"title":"Stainless Precision Bearing","offer_id":52317417079096,"sku":"S34-R-420-PPR-03","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/4191\/0328\/files\/S34-R-420-PPR-03-2.jpg?v=1771094800"},{"product_id":"durastar-medium-heavy-duty-s34-series-4-x-2-duratek-high-tech-rubber-swivel-caster-450-lb-capacity-4-x-4-1-2-stainless-top-plate","title":"4\" x 2\" Duratek Rubber Swivel Stainless Caster – 450 lb | CasterHQ","description":"\u003c!-- Main Container --\u003e\n\u003cdiv style=\"box-shadow: 0px 4px 8px rgba(0,0,0,0.1); padding: 20px; border-radius: 12px;\"\u003e\n    \u003c!-- Product Header --\u003e\n    \u003ch1 style=\"color: rgb(1, 99, 103); font-weight: bold;  text-align: center;\"\u003e\n        Durastar Medium Heavy Duty S34 Series - 4\" x 2\" Duratek High Tech Rubber Swivel Caster - 450 lb Capacity, 4\" x 4-1\/2\" Stainless Top Plate\n    \u003c\/h1\u003e\n    \u003chr id=\"horizontalrule\"\u003e\n    \n    \u003c!-- Product Features Section --\u003e\n    \u003ch2 style=\"color: #8AC973; font-weight: bold; \"\u003eProduct Features\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duratek High Tech Rubber for durability and smooth performance\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 450 lb capacity per caster, designed for heavy-duty applications\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eTop Plate:\u003c\/strong\u003e 4\" x 4-1\/2\" stainless top plate size for compatibility with various equipment\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Swivel caster design for optimal maneuverability and ease of use\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Ideal for industrial, medical, and warehouse use\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003c!-- Product Description --\u003e\n    \u003cp\u003e\n        The Durastar Medium Heavy Duty S34 Series 4\" x 2\" Duratek High Tech Rubber Swivel Caster offers exceptional durability and reliability for heavy-duty applications. With a robust 450 lb capacity, this caster is engineered to withstand demanding environments such as warehouses, factories, and medical settings. The high-tech Duratek rubber wheel ensures a smooth, quiet ride, while the swivel design allows for easy movement and maneuverability.\n    \u003c\/p\u003e\n    \u003cp\u003e\n        Featuring a 4\" x 4-1\/2\" stainless top plate, this caster is designed for versatile compatibility with a wide range of equipment, making it a perfect fit for your mobility solutions. Whether you're moving heavy machinery or medical carts, the Durastar S34 Series delivers superior performance and ease of use.\n    \u003c\/p\u003e\n    \u003cp\u003e\n        Durastar's commitment to quality ensures that each caster is crafted with precision and durability in mind. The high-tech rubber provides optimal floor protection while reducing wear and tear. Upgrade your operations with a caster designed to handle the toughest tasks with ease and reliability.\n    \u003c\/p\u003e\n\n    \u003c!-- Call to Action --\u003e\n    \u003ch2 style=\"color: #8AC973; font-weight: bold; \"\u003eEnhance Your Mobility Solutions with Durastar Casters\u003c\/h2\u003e\n    \u003cp\u003e\n        Choose the Durastar Medium Heavy Duty S34 Series for your next mobility solution. With unmatched durability and superior performance, these casters are the perfect choice for heavy-duty applications. Shop now and experience the difference!\n    \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Durastar","offers":[{"title":"No Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Roller Bearing","offer_id":50130990039352,"sku":"S34-S-420-PPR-03","price":55.0,"currency_code":"USD","in_stock":true},{"title":"No Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Precision Bearing","offer_id":50130990006584,"sku":"S34-S-420-PPR-03","price":63.0,"currency_code":"USD","in_stock":true},{"title":"No Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Stainless Roller Bearing","offer_id":52317435691320,"sku":"S34-S-420-PPR-03","price":70.0,"currency_code":"USD","in_stock":true},{"title":"No Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Stainless Precision Bearing","offer_id":52317435429176,"sku":"S34-S-420-PPR-03","price":77.0,"currency_code":"USD","in_stock":true},{"title":"No Brake \/ 4 POSITION LOCK \/ Roller Bearing","offer_id":50130989875512,"sku":"S34-S-420-PPR-03","price":55.0,"currency_code":"USD","in_stock":true},{"title":"No Brake \/ 4 POSITION LOCK \/ Precision Bearing","offer_id":50130989842744,"sku":"S34-S-420-PPR-03","price":63.0,"currency_code":"USD","in_stock":true},{"title":"No Brake \/ 4 POSITION LOCK \/ Stainless Roller Bearing","offer_id":52317435658552,"sku":"S34-S-420-PPR-03","price":70.0,"currency_code":"USD","in_stock":true},{"title":"No Brake \/ 4 POSITION LOCK \/ Stainless Precision Bearing","offer_id":52317435396408,"sku":"S34-S-420-PPR-03","price":77.0,"currency_code":"USD","in_stock":true},{"title":"Top Locking Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Roller Bearing","offer_id":50130990367032,"sku":"S34-S-420-PPR-03","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Top Locking Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Precision Bearing","offer_id":50130990334264,"sku":"S34-S-420-PPR-03","price":68.0,"currency_code":"USD","in_stock":true},{"title":"Top Locking Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Stainless Roller Bearing","offer_id":52317435756856,"sku":"S34-S-420-PPR-03","price":75.0,"currency_code":"USD","in_stock":true},{"title":"Top Locking Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Stainless Precision Bearing","offer_id":52317435494712,"sku":"S34-S-420-PPR-03","price":82.0,"currency_code":"USD","in_stock":true},{"title":"Top Locking Brake \/ 4 POSITION LOCK \/ Roller Bearing","offer_id":50130990203192,"sku":"S34-S-420-PPR-03","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Top Locking Brake \/ 4 POSITION LOCK \/ Precision Bearing","offer_id":50130990170424,"sku":"S34-S-420-PPR-03","price":68.0,"currency_code":"USD","in_stock":true},{"title":"Top Locking Brake \/ 4 POSITION LOCK \/ Stainless Roller Bearing","offer_id":52317435724088,"sku":"S34-S-420-PPR-03","price":75.0,"currency_code":"USD","in_stock":true},{"title":"Top Locking Brake \/ 4 POSITION LOCK \/ Stainless Precision Bearing","offer_id":52317435461944,"sku":"S34-S-420-PPR-03","price":82.0,"currency_code":"USD","in_stock":true},{"title":"Total Locking Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Roller Bearing","offer_id":50130990694712,"sku":"S34-S-420-PPR-03","price":67.5,"currency_code":"USD","in_stock":true},{"title":"Total Locking Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Precision Bearing","offer_id":50130990661944,"sku":"S34-S-420-PPR-03","price":75.5,"currency_code":"USD","in_stock":true},{"title":"Total Locking Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Stainless Roller Bearing","offer_id":52317435822392,"sku":"S34-S-420-PPR-03","price":82.5,"currency_code":"USD","in_stock":true},{"title":"Total Locking Brake \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Stainless Precision Bearing","offer_id":52317435560248,"sku":"S34-S-420-PPR-03","price":89.5,"currency_code":"USD","in_stock":true},{"title":"Total Locking Brake \/ 4 POSITION LOCK \/ Roller Bearing","offer_id":50130990530872,"sku":"S34-S-420-PPR-03","price":67.5,"currency_code":"USD","in_stock":true},{"title":"Total Locking Brake \/ 4 POSITION LOCK \/ Precision Bearing","offer_id":50130990498104,"sku":"S34-S-420-PPR-03","price":75.5,"currency_code":"USD","in_stock":true},{"title":"Total Locking Brake \/ 4 POSITION LOCK \/ Stainless Roller Bearing","offer_id":52317435789624,"sku":"S34-S-420-PPR-03","price":82.5,"currency_code":"USD","in_stock":true},{"title":"Total Locking Brake \/ 4 POSITION LOCK \/ Stainless Precision Bearing","offer_id":52317435527480,"sku":"S34-S-420-PPR-03","price":89.5,"currency_code":"USD","in_stock":true},{"title":"Directional Lock \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Roller Bearing","offer_id":50130989711672,"sku":"S34-S-420-PPR-03","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Directional Lock \/ CHOOSE SWIVEL LOCK (OPTIONAL) \/ Precision 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