{"product_id":"pressed-steel-swivel-castors-with-grey-cast-iron-wheel-80mm-100mm","title":"Pressed Steel Swivel Castors With Grey Cast Iron Wheel - 80mm \u0026 100mm","description":"\u003cstyle\u003e\n.pc-wrap { font-family: 'Helvetica Neue', Arial, sans-serif; color: #1a1a1a; max-width: 960px; margin: 0 auto; }\n.pc-hero { background: #1c2b39; color: #ffffff; padding: 36px 40px; border-radius: 4px 4px 0 0; }\n.pc-hero h1 { font-size: 1.75rem; font-weight: 700; margin: 0 0 10px; letter-spacing: -0.3px; }\n.pc-hero p { font-size: 1rem; color: #c8d8e4; margin: 0; line-height: 1.6; }\n.pc-intro { background: #f7f9fb; border-left: 4px solid #1c2b39; padding: 22px 28px; margin: 0; }\n.pc-intro p { font-size: 0.97rem; line-height: 1.75; margin: 0; color: #2c3e50; }\n.pc-section { padding: 32px 0 8px; }\n.pc-section-title { font-size: 1.1rem; font-weight: 700; color: #1c2b39; text-transform: uppercase; letter-spacing: 0.8px; border-bottom: 2px solid #1c2b39; padding-bottom: 8px; margin-bottom: 20px; }\n.pc-compare-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; margin-bottom: 8px; }\n.pc-compare-table th { background: #1c2b39; color: #ffffff; padding: 11px 14px; text-align: left; font-weight: 600; }\n.pc-compare-table td { padding: 10px 14px; border-bottom: 1px solid #e2e8ed; vertical-align: top; }\n.pc-compare-table tr:nth-child(even) td { background: #f4f7fa; }\n.pc-compare-table tr:hover td { background: #eaf0f6; }\n.pc-variant-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 4px; }\n.pc-variant-card { border: 1px solid #d0dce6; border-radius: 4px; overflow: hidden; }\n.pc-variant-card-header { background: #1c2b39; color: #fff; padding: 14px 20px; }\n.pc-variant-card-header h3 { margin: 0; font-size: 1rem; font-weight: 700; }\n.pc-variant-card-header span { font-size: 0.82rem; color: #a8c0d0; }\n.pc-variant-card-body { padding: 18px 20px; }\n.pc-spec-table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }\n.pc-spec-table tr td:first-child { color: #5a6a78; font-weight: 600; width: 52%; padding: 7px 0; border-bottom: 1px solid #edf1f5; }\n.pc-spec-table tr td:last-child { color: #1a1a1a; padding: 7px 0; border-bottom: 1px solid #edf1f5; }\n.pc-apps { margin-top: 6px; }\n.pc-apps ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 20px; }\n.pc-apps ul li { font-size: 0.88rem; color: #2c3e50; padding: 5px 0; border-bottom: 1px solid #edf1f5; }\n.pc-apps ul li::before { content: \"\\2713\"; color: #1c2b39; font-weight: 700; margin-right: 7px; }\n.pc-features { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 20px; list-style: none; padding: 0; margin: 0; }\n.pc-features li { font-size: 0.88rem; color: #2c3e50; padding: 6px 0; border-bottom: 1px solid #edf1f5; }\n.pc-features li::before { content: \"\\2713\"; color: #1c2b39; font-weight: 700; margin-right: 7px; }\n.pc-faq { margin-top: 4px; }\n.pc-faq-item { border: 1px solid #d0dce6; border-radius: 4px; margin-bottom: 12px; overflow: hidden; }\n.pc-faq-q { background: #f4f7fa; padding: 14px 18px; font-weight: 700; font-size: 0.92rem; color: #1c2b39; }\n.pc-faq-a { padding: 14px 18px; font-size: 0.88rem; color: #2c3e50; line-height: 1.7; border-top: 1px solid #d0dce6; }\n.pc-badge-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }\n.pc-badge { background: #eaf0f6; border: 1px solid #c0d4e4; border-radius: 3px; padding: 7px 14px; font-size: 0.8rem; font-weight: 600; color: #1c2b39; text-transform: uppercase; letter-spacing: 0.5px; }\n@media (max-width: 640px) { .pc-variant-grid { grid-template-columns: 1fr; } .pc-apps ul { grid-template-columns: 1fr; } .pc-features { grid-template-columns: 1fr; } }\n\u003c\/style\u003e\n\u003cdiv class=\"pc-wrap\"\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv class=\"pc-hero\"\u003e\n\u003ch1\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003ePressed Steel Swivel Castors With Grey Cast Iron Wheel\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eAvailable in 80mm (120kg) and 100mm (140kg) — 4-Hole Top Plate — Double Ball Bearing Swivel Head — UK Stock\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- INTRO --\u003e\n\u003cdiv class=\"pc-intro\"\u003e\n\u003cp\u003eThese pressed steel swivel castors are engineered for demanding industrial and commercial environments where reliable load-bearing mobility is essential. Fitted with a grey cast iron wheel and mounted on a robust pressed steel bracket with white zinc plating, each castor delivers smooth, controlled movement across hard floor surfaces. The 4-hole top plate configuration ensures secure, versatile fixing to a wide range of equipment frames, trolleys, and platforms. Available in two wheel diameters — 80mm and 100mm — to suit different load requirements and floor clearance needs, these castors are a trusted choice for workshops, warehouses, manufacturing facilities, and retail environments across the UK.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- COMPARISON TABLE --\u003e\n\u003cdiv class=\"pc-section\"\u003e\n\u003cdiv class=\"pc-section-title\"\u003eQuick Comparison — All Options at a Glance\u003c\/div\u003e\n\u003ctable class=\"pc-compare-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003e80mm Wheel\u003c\/th\u003e\n\u003cth\u003e100mm Wheel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Diameter\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Capacity\u003c\/td\u003e\n\u003ctd\u003e120 kg\u003c\/td\u003e\n\u003ctd\u003e140 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Height (Fitted)\u003c\/td\u003e\n\u003ctd\u003e106 mm\u003c\/td\u003e\n\u003ctd\u003e127 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTread Width\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Material\u003c\/td\u003e\n\u003ctd\u003eGrey Cast Iron\u003c\/td\u003e\n\u003ctd\u003eGrey Cast Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Hardness\u003c\/td\u003e\n\u003ctd\u003e85 Shore A\u003c\/td\u003e\n\u003ctd\u003e85 Shore A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eBall Journal Bearing\u003c\/td\u003e\n\u003ctd\u003eBall Journal Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Material\u003c\/td\u003e\n\u003ctd\u003ePressed Steel\u003c\/td\u003e\n\u003ctd\u003ePressed Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Finish\u003c\/td\u003e\n\u003ctd\u003eWhite Zinc Plating\u003c\/td\u003e\n\u003ctd\u003eWhite Zinc Plating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Plate Size\u003c\/td\u003e\n\u003ctd\u003e100 x 85 mm\u003c\/td\u003e\n\u003ctd\u003e100 x 85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Centres (Long)\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Centres (Short)\u003c\/td\u003e\n\u003ctd\u003e60 mm\u003c\/td\u003e\n\u003ctd\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Diameter\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Fixing Holes\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCastor Type\u003c\/td\u003e\n\u003ctd\u003eSwivel\u003c\/td\u003e\n\u003ctd\u003eSwivel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- VARIANT DETAIL CARDS --\u003e\n\u003cdiv class=\"pc-section\"\u003e\n\u003cdiv class=\"pc-section-title\"\u003eDetailed Specifications by Option\u003c\/div\u003e\n\u003c!-- 80mm CARD --\u003e\n\u003cdiv class=\"pc-variant-card\"\u003e\n\u003cdiv class=\"pc-variant-card-header\"\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e80mm Wheel — 120kg Load Capacity\u003c\/span\u003e\u003c\/h2\u003e\n\u003cspan\u003eIdeal for lighter industrial and commercial equipment\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-variant-card-body\"\u003e\n\u003ctable class=\"pc-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Diameter\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Capacity\u003c\/td\u003e\n\u003ctd\u003e120 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Height (Fitted)\u003c\/td\u003e\n\u003ctd\u003e106 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTread Width\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Material\u003c\/td\u003e\n\u003ctd\u003eGrey Cast Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Hardness\u003c\/td\u003e\n\u003ctd\u003e85 Shore A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eBall Journal Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Material\u003c\/td\u003e\n\u003ctd\u003ePressed Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Finish\u003c\/td\u003e\n\u003ctd\u003eWhite Zinc Plating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Plate Size\u003c\/td\u003e\n\u003ctd\u003e100 x 85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Centres (Long)\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Centres (Short)\u003c\/td\u003e\n\u003ctd\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Diameter\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Fixing Holes\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCastor Type\u003c\/td\u003e\n\u003ctd\u003eSwivel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 16px;\"\u003e\n\u003cdiv style=\"font-size: 0.82rem; font-weight: bold; color: #1c2b39; text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 10px;\"\u003eTypical Applications\u003c\/div\u003e\n\u003cdiv class=\"pc-apps\"\u003e\n\u003cul\u003e\n\u003cli\u003eWorkshop trolleys and benches\u003c\/li\u003e\n\u003cli\u003eLight industrial equipment frames\u003c\/li\u003e\n\u003cli\u003eRetail display units and shelving\u003c\/li\u003e\n\u003cli\u003eOffice furniture and mobile pedestals\u003c\/li\u003e\n\u003cli\u003eHospitality service trolleys\u003c\/li\u003e\n\u003cli\u003eStorage cabinets and mobile racks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 100mm CARD --\u003e\n\u003cdiv class=\"pc-variant-card\"\u003e\n\u003cdiv class=\"pc-variant-card-header\"\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e100mm Wheel — 140kg Load Capacity\u003c\/span\u003e\u003c\/h2\u003e\n\u003cspan\u003eSuited to heavier loads and longer travel distances\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-variant-card-body\"\u003e\n\u003ctable class=\"pc-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Diameter\u003c\/td\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Capacity\u003c\/td\u003e\n\u003ctd\u003e140 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Height (Fitted)\u003c\/td\u003e\n\u003ctd\u003e127 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTread Width\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Material\u003c\/td\u003e\n\u003ctd\u003eGrey Cast Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Hardness\u003c\/td\u003e\n\u003ctd\u003e85 Shore A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eBall Journal Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Material\u003c\/td\u003e\n\u003ctd\u003ePressed Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Finish\u003c\/td\u003e\n\u003ctd\u003eWhite Zinc Plating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Plate Size\u003c\/td\u003e\n\u003ctd\u003e100 x 85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Centres (Long)\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Centres (Short)\u003c\/td\u003e\n\u003ctd\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Diameter\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Fixing Holes\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCastor Type\u003c\/td\u003e\n\u003ctd\u003eSwivel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 16px;\"\u003e\n\u003cdiv style=\"font-size: 0.82rem; font-weight: bold; color: #1c2b39; text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 10px;\"\u003eTypical Applications\u003c\/div\u003e\n\u003cdiv class=\"pc-apps\"\u003e\n\u003cul\u003e\n\u003cli\u003eWarehouse platform trucks and dollies\u003c\/li\u003e\n\u003cli\u003eHeavy-duty manufacturing equipment\u003c\/li\u003e\n\u003cli\u003eDistribution and logistics trolleys\u003c\/li\u003e\n\u003cli\u003eIndustrial workstations and frames\u003c\/li\u003e\n\u003cli\u003eHealthcare equipment and bed frames\u003c\/li\u003e\n\u003cli\u003eCatering and kitchen service units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- KEY FEATURES --\u003e\n\u003cdiv class=\"pc-section\"\u003e\n\u003cdiv class=\"pc-section-title\"\u003eKey Product Features\u003c\/div\u003e\n\u003cul class=\"pc-features\"\u003e\n\u003cli\u003eGrey cast iron wheel for durability on hard floors\u003c\/li\u003e\n\u003cli\u003ePressed steel bracket with white zinc plating for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eDouble ball bearing swivel head for smooth 360° rotation\u003c\/li\u003e\n\u003cli\u003eBall journal bearing in wheel for reduced rolling resistance\u003c\/li\u003e\n\u003cli\u003e4-hole top plate for secure, versatile equipment mounting\u003c\/li\u003e\n\u003cli\u003ePlastic dustguard protects bearing from debris ingress\u003c\/li\u003e\n\u003cli\u003eConsistent 100 x 85mm plate across both sizes for easy interchange\u003c\/li\u003e\n\u003cli\u003eSuitable for hard, smooth, and semi-rough floor surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- TRUST BADGES --\u003e\n\u003cdiv class=\"pc-badge-row\"\u003e\n\u003cdiv class=\"pc-badge\"\u003eUK Stock\u003c\/div\u003e\n\u003cdiv class=\"pc-badge\"\u003e4-Hole Top Plate\u003c\/div\u003e\n\u003cdiv class=\"pc-badge\"\u003eBall Bearing\u003c\/div\u003e\n\u003cdiv class=\"pc-badge\"\u003eCast Iron Wheel\u003c\/div\u003e\n\u003cdiv class=\"pc-badge\"\u003e120kg – 140kg Rated\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FAQs --\u003e\n\u003cdiv style=\"margin-top: 32px;\" class=\"pc-section\"\u003e\n\u003cdiv class=\"pc-section-title\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv class=\"pc-faq\"\u003e\n\u003cdiv class=\"pc-faq-item\"\u003e\n\u003cdiv class=\"pc-faq-q\"\u003eWhat is the difference between the 80mm and 100mm options?\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-a\"\u003eThe primary differences are wheel diameter, total fitted height, and load capacity. The 80mm castor has a total height of 106mm and supports up to 120kg per castor, making it well suited to lighter equipment and lower-profile applications. The 100mm castor stands 127mm tall and is rated to 140kg per castor, offering greater ground clearance and improved rolling performance over longer distances or on slightly uneven surfaces. Both share the same top plate dimensions (100 x 85mm) and fixing hole pattern, so they can be interchanged on the same equipment frame without modification.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-item\"\u003e\n\u003cdiv class=\"pc-faq-q\"\u003eAre these castors suitable for use on concrete or rough workshop floors?\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-a\"\u003eGrey cast iron wheels perform best on hard, smooth, or semi-smooth surfaces such as sealed concrete, tile, resin-coated floors, and compacted surfaces. They are well established in workshop and industrial environments where floor conditions are firm and consistent. On heavily textured, loose, or soft surfaces, a rubber or polyurethane wheel would typically be more appropriate. If your floor surface is sealed or painted concrete, these castors will perform reliably under their rated load capacities.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-item\"\u003e\n\u003cdiv class=\"pc-faq-q\"\u003eHow do I calculate the total load capacity I need for my application?\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-a\"\u003eTo calculate the required load capacity per castor, divide the total weight of the loaded equipment by the number of castors being fitted, then apply a safety margin of at least 25–30% above that figure. For example, if your trolley and its maximum load weigh 400kg and you are fitting four castors, each castor must support 100kg. Selecting the 120kg-rated 80mm option would provide an appropriate safety margin in this scenario. Always base your calculation on the maximum anticipated load, not the average.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-item\"\u003e\n\u003cdiv class=\"pc-faq-q\"\u003eWhat fixings are required to mount the top plate, and are they included?\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-a\"\u003eThe top plate features four fixing holes with a 10mm hole diameter, arranged on 60mm (short) and 80mm (long) hole centres. Standard M8 bolts, nuts, and washers are typically used to secure the plate to the equipment frame. Fixings are not included with the castors and should be sourced separately to match your specific frame material and thickness. The consistent hole pattern across both the 80mm and 100mm options means the same fixings can be used for either size.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SafetySuppliesCo","offers":[{"title":"80mm - 120 KG","offer_id":52516883366181,"sku":null,"price":25.89,"currency_code":"GBP","in_stock":true},{"title":"100mm - 140 KG","offer_id":52516883398949,"sku":null,"price":37.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/100mm-1.jpg?v=1780668799","url":"https:\/\/safetysuppliesco.co.uk\/products\/pressed-steel-swivel-castors-with-grey-cast-iron-wheel-80mm-100mm","provider":"safetysuppliesco.co.uk","version":"1.0","type":"link"}