{"product_id":"knurr-heavy-duty-caster-set-125-mm-with-brake-4-pack","title":"Knurr Heavy-Duty Caster Set — 125 mm with Brake (4-Pack)","description":"\u003ch2\u003eKnurr Heavy-Duty Caster Set — 125 mm with Brake (4-Pack)\u003c\/h2\u003e\u003cp\u003eConvert any stationary \u003cstrong\u003eKnurr DCM or MIR2\u003c\/strong\u003e rack enclosure to a mobile configuration with the \u003cstrong\u003eKnurr Heavy-Duty Caster Set — 125 mm with Brake (4-Pack)\u003c\/strong\u003e, manufactured by Extron. Factory-compatible and engineered for the Knurr rack base channel, these castors enable transport of fully populated rack assemblies across smooth raised-floor tiles, polished concrete, and ESD-coated computer room flooring without removing installed equipment.\u003c\/p\u003e\u003ch3\u003eHigh Load Capacity\u003c\/h3\u003e\u003cp\u003eEach \u003cstrong\u003eø 125 mm double-ball-bearing swivel castor\u003c\/strong\u003e is rated for \u003cstrong\u003e750 N (≈ 76 kg) individual load\u003c\/strong\u003e, with four castors providing a \u003cstrong\u003ecombined static load rating of 3,000 N (≈ 306 kg)\u003c\/strong\u003e per rack assembly — sufficient for fully populated 42U rack configurations including servers, storage, and PDUs.\u003c\/p\u003e\u003cimg src=\"generation:\/\/507b8f4a-b4b9-4530-b3f9-f46297e06858\" alt=\"Knurr Heavy-Duty Caster Set 125mm 4-Pack — Studio shot showing two brake casters and two plain swivel casters with fork, wheel, and mounting bolt\" style=\"max-width:100%;margin:16px 0;\"\u003e\u003cp\u003e\u003cem\u003eStudio shot: Knurr 125mm Caster Set — two brake casters (with lever) and two plain swivel casters, showing fork, wheel, and M8 mounting bolt.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003ePositive-Lock Brake System\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eTwo of the four castors include a positive-lock foot brake pedal\u003c\/strong\u003e in RAL 7021 dark-grey, securing the rack in position during equipment installation, maintenance, or when parked in a colocation cage. The brake engages with a firm foot press and releases cleanly without tools.\u003c\/p\u003e\u003ch3\u003eFactory-Matched Mounting\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003ezinc-plated steel fork assembly\u003c\/strong\u003e and \u003cstrong\u003eø 35 mm bolt-hole mounting pattern\u003c\/strong\u003e are factory-matched to Knurr rack base channel dimensions. \u003cstrong\u003eM8 mounting hardware is included\u003c\/strong\u003e, enabling direct bolt-on installation without drilling or modification to the rack base frame.\u003c\/p\u003e\u003cimg src=\"generation:\/\/3ce9a4ea-60d5-4ba0-a8ae-1ed9c553ca5d\" alt=\"Knurr Caster Set — Technician pushing a fully populated Knurr DCM rack across raised floor during rack relocation with brake casters locked\" style=\"max-width:100%;margin:16px 0;\"\u003e\u003cp\u003e\u003cem\u003eIn-use installation: Technician pushing a fully populated Knurr DCM rack across a raised floor during rack relocation, with brake casters locked.\u003c\/em\u003e\u003c\/p\u003e\u003cimg src=\"generation:\/\/27a1236a-ca03-48cb-ab54-9146b62cf4eb\" alt=\"Knurr Caster Set — Close-up of brake pedal mechanism, double-ball-bearing wheel hub, and zinc-plated fork assembly\" style=\"max-width:100%;margin:16px 0;\"\u003e\u003cp\u003e\u003cem\u003eDetail shot: Brake pedal mechanism engaged, double-ball-bearing wheel hub, and zinc-plated fork assembly.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color:#f0f0f0;\"\u003e\n\u003cth style=\"text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWheel Diameter (mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eø 125 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Rating per Caster (N \/ kg)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e750 N \/ ≈ 76 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCombined Load — 4 Casters (N \/ kg)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3,000 N \/ ≈ 306 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwivel Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble-ball-bearing swivel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrake Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePositive-lock foot brake pedal (2 of 4 casters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFork Material \/ Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel \/ Zinc-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Hole Pattern (mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eø 35 mm bolt-hole (M8 hardware included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFloor Surface Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRaised floor tiles, polished concrete, ESD-coated computer room flooring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 casters (2 with brake, 2 plain swivel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Extron","offers":[{"title":"Default Title","offer_id":43427970023542,"sku":null,"price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/7987\/3142\/files\/image_9eda5280-94dc-4c27-a843-ec9cffd4dbe9.png?v=1779214739","url":"https:\/\/exlogistix.com\/products\/knurr-heavy-duty-caster-set-125-mm-with-brake-4-pack","provider":"Extron Logistics LLC","version":"1.0","type":"link"}