{"product_id":"heavy-duty-caster-4x2-rubber-on-cast-iron-wheel","title":"Heavy Duty Rubber on Cast Iron Caster 4\"–8\" x 2\" (Series 40) — Rigid, Swivel, Brake \u0026 Total Lock","description":"\u003ch2 style=\"color:#c0392b;margin:0 0 8px\"\u003eHeavy Duty Rubber on Cast Iron Caster — Series 40 (4\", 5\", 6\" \u0026amp; 8\" x 2\")\u003c\/h2\u003e\u003cp\u003eThis Series 40 Medium Heavy Duty rubber on cast iron caster is available in four wheel sizes — \u003cstrong\u003e4\" x 2\", 5\" x 2\", 6\" x 2\", and 8\" x 2\"\u003c\/strong\u003e — each on a cold-forged steel top plate with a hardened, double-row ball bearing swivel raceway and built-in Zerk lubrication fitting for smooth 360° movement and long service life. Every size is offered in four configurations: \u003cstrong\u003eRigid, Swivel, Swivel with Brake (Top Lock), and Swivel with Total Lock\u003c\/strong\u003e. Select your wheel size and configuration from the menu above; the matching specifications are listed below.\u003c\/p\u003e\u003ch3 style=\"border-left:4px solid #c0392b;padding-left:8px\"\u003eSpecifications by Size\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;width:100%\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#c0392b;color:#fff\"\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003eWheel Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003eLoad Capacity\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003eOverall Height\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003eSwivel Radius\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003eTread Width\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e4\" x 2\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e350 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e5-5\/8\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e3-3\/16\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e5\" x 2\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e400 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e6-1\/2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e3-7\/8\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e6\" x 2\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e450 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e7-1\/2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e4-37\/64\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e8\" x 2\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e500 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e9-1\/2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e6\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3 style=\"border-left:4px solid #c0392b;padding-left:8px\"\u003eConfigurations \u0026amp; Part Numbers\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;width:100%\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#c0392b;color:#fff\"\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003eType\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003eBrake\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left\"\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e4\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eRigid\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-40R-A1-RC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e4\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-40S-A1-RC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e4\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel with Brake\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eTop Lock Brake (TB)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-40S-A1-RC-TB\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e4\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel with Total Lock\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eTotal Lock Brake (TTL)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-40S-A1-RC-TTL\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e5\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eRigid\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-50R-A1-RC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e5\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-50S-A1-RC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e5\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel with Brake\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eTop Lock Brake (TB)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-50S-A1-RC-TB\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e5\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel with Total Lock\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eTotal Lock Brake (TTL)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-50S-A1-RC-TTL\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e6\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eRigid\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-60R-A1-RC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e6\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-60S-A1-RC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e6\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel with Brake\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eTop Lock Brake (TB)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-60S-A1-RC-TB\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e6\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel with Total Lock\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eTotal Lock Brake (TTL)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-60S-A1-RC-TTL\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e8\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eRigid\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-80R-A1-RC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e8\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-80S-A1-RC\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e8\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel with Brake\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eTop Lock Brake (TB)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-80S-A1-RC-TB\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e8\" x 2\"\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eSwivel with Total Lock\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eTotal Lock Brake (TTL)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e\u003cstrong\u003e40-80S-A1-RC-TTL\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3 style=\"border-left:4px solid #c0392b;padding-left:8px\"\u003eCommon Specifications (all sizes)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;width:100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e40 — Medium Heavy Duty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eWheel Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eRubber on Cast Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eTread Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eAxle Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eKingpin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e5\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eBearing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eRoller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eTop Plate Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e3-15\/16\" x 4-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eBolt Hole Spacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e2-5\/8\" x 3-5\/8\" ~ 3\" x 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eMounting Bolt Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;background:#f7f7f7\"\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px\"\u003eZinc Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3 style=\"border-left:4px solid #c0392b;padding-left:8px\"\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRubber on Cast Iron wheel — high strength, low rolling resistance\u003c\/li\u003e\n\u003cli\u003eFour wheel sizes (4\", 5\", 6\", 8\" x 2\") rated \u003cstrong\u003e350–500 lbs\u003c\/strong\u003e per caster\u003c\/li\u003e\n\u003cli\u003eCold-forged steel top plate with hardened, double-row ball bearing swivel raceway\u003c\/li\u003e\n\u003cli\u003e5\/8\" kingpin and 1\/2\" axle with built-in Zerk lubrication fitting\u003c\/li\u003e\n\u003cli\u003eRigid, Swivel, Swivel with Brake (Top Lock) and Swivel with Total Lock configurations\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant zinc plated finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 style=\"border-left:4px solid #c0392b;padding-left:8px\"\u003eApplications \u0026amp; Common Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRough industrial floors\u003c\/li\u003e\n\u003cli\u003eHeavy-duty dollies\u003c\/li\u003e\n\u003cli\u003eFoundry-adjacent carts\u003c\/li\u003e\n\u003cli\u003eCarts\u003c\/li\u003e\n\u003cli\u003eRacks\u003c\/li\u003e\n\u003cli\u003ePlatform trucks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIdeal for platform trucks, stock carts, dollies, workbenches, shelving, and heavy material handling equipment across warehouse, industrial, and commercial settings.\u003c\/p\u003e","brand":"HYW Products","offers":[{"title":"4\" x 2\" \/ Rigid","offer_id":52698746814784,"sku":"40-40R-A1-RC","price":15.76,"currency_code":"USD","in_stock":true},{"title":"4\" x 2\" \/ Swivel","offer_id":51918365098304,"sku":"40-40S-A1-RC","price":17.84,"currency_code":"USD","in_stock":true},{"title":"4\" x 2\" \/ Swivel with Brake","offer_id":52698746847552,"sku":"40-40S-A1-RC-TB","price":21.51,"currency_code":"USD","in_stock":true},{"title":"4\" x 2\" \/ Swivel with Total Lock","offer_id":52698878411072,"sku":"40-40S-A1-RC-TTL","price":25.51,"currency_code":"USD","in_stock":true},{"title":"5\" x 2\" \/ Rigid","offer_id":52698975830336,"sku":"40-50R-A1-RC","price":17.47,"currency_code":"USD","in_stock":true},{"title":"5\" x 2\" \/ Swivel","offer_id":52698975863104,"sku":"40-50S-A1-RC","price":19.67,"currency_code":"USD","in_stock":true},{"title":"5\" x 2\" \/ Swivel with 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