{"product_id":"50mm-fixed-castor-with-grey-rubber-on-polypropylene-wheel-4-bolt-hole-60kg-load-capacity","title":"50mm Fixed Castor With Grey Rubber on Polypropylene Wheel \u0026 4-Bolt-Hole - 60kg Load Capacity","description":"\u003cstyle\u003e\n  .pc-wrap { font-family: Georgia, 'Times New Roman', serif; color: #1a1a1a; max-width: 860px; margin: 0 auto; }\n  .pc-hero { background: #1c2b39; color: #ffffff; padding: 36px 40px 32px; border-radius: 4px 4px 0 0; }\n  .pc-hero h1 { font-size: 1.55em; font-weight: 700; letter-spacing: 0.02em; margin: 0 0 10px; color: #ffffff; }\n  .pc-hero p { font-size: 0.97em; line-height: 1.75; margin: 0; color: #c8d6e0; }\n  .pc-section { padding: 30px 40px; border-bottom: 1px solid #e8ecef; }\n  .pc-section:last-child { border-bottom: none; }\n  .pc-section h2 { font-size: 1.05em; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #1c2b39; margin: 0 0 18px; padding-bottom: 8px; border-bottom: 2px solid #1c2b39; display: inline-block; }\n  .pc-section p { font-size: 0.95em; line-height: 1.8; color: #333; margin: 0 0 12px; }\n  .pc-features { list-style: none; padding: 0; margin: 0; }\n  .pc-features li { font-size: 0.94em; line-height: 1.7; color: #333; padding: 7px 0 7px 20px; border-bottom: 1px solid #f0f2f4; position: relative; }\n  .pc-features li:last-child { border-bottom: none; }\n  .pc-features li::before { content: '\\2713'; position: absolute; left: 0; color: #1c2b39; font-weight: 700; }\n  .pc-features li strong { color: #1a1a1a; }\n  .pc-table { width: 100%; border-collapse: collapse; font-size: 0.91em; }\n  .pc-table thead tr { background: #1c2b39; color: #ffffff; }\n  .pc-table thead th { padding: 11px 16px; text-align: left; font-weight: 600; letter-spacing: 0.06em; font-size: 0.88em; text-transform: uppercase; }\n  .pc-table tbody tr:nth-child(even) { background: #f5f7f9; }\n  .pc-table tbody tr:nth-child(odd) { background: #ffffff; }\n  .pc-table tbody td { padding: 10px 16px; color: #333; border-bottom: 1px solid #e8ecef; vertical-align: top; }\n  .pc-table tbody td:first-child { font-weight: 600; color: #1c2b39; width: 46%; }\n  .pc-table tbody td:last-child { color: #444; }\n  .pc-apps { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }\n  .pc-app-card { background: #f5f7f9; border-left: 3px solid #1c2b39; padding: 16px 18px; border-radius: 2px; }\n  .pc-app-card h3 { font-size: 0.9em; font-weight: 700; color: #1c2b39; margin: 0 0 6px; text-transform: uppercase; letter-spacing: 0.08em; }\n  .pc-app-card p { font-size: 0.88em; line-height: 1.65; color: #444; margin: 0; }\n  .pc-faq { margin: 0; }\n  .pc-faq-item { padding: 16px 0; border-bottom: 1px solid #e8ecef; }\n  .pc-faq-item:last-child { border-bottom: none; }\n  .pc-faq-item h3 { font-size: 0.95em; font-weight: 700; color: #1c2b39; margin: 0 0 8px; }\n  .pc-faq-item p { font-size: 0.91em; line-height: 1.75; color: #444; margin: 0; }\n  .pc-note { background: #f5f7f9; border: 1px solid #dde3e8; border-radius: 3px; padding: 14px 18px; font-size: 0.88em; color: #555; line-height: 1.7; margin-top: 4px; }\n\u003c\/style\u003e\n\u003cdiv class=\"pc-wrap\"\u003e\n\u003cdiv class=\"pc-hero\"\u003e\n\u003ch1\u003e50mm Fixed Castor — Grey Rubber on Polypropylene Wheel, 4-Bolt-Hole Top Plate, 60kg Load Capacity\u003c\/h1\u003e\n\u003cp\u003eA pressed steel, zinc-plated fixed castor designed for reliable, straight-line mobility across hard and semi-hard floor surfaces. Engineered for use on trolleys, workbenches, storage units, light industrial equipment, and domestic furniture, this castor combines a grey rubber tread bonded to a black polypropylene core — delivering quiet, floor-friendly movement with a 60kg per-castor load rating. The fixed (non-swivel) configuration provides directional stability, making it the preferred choice wherever controlled, linear travel is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-section\"\u003e\n\u003ch2\u003eKey Performance Features\u003c\/h2\u003e\n\u003cul class=\"pc-features\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed Non-Swivel Design:\u003c\/strong\u003e Provides straight-line directional control — ideal for trolleys and equipment that travel in a defined path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrey Rubber Tread on Polypropylene Core:\u003c\/strong\u003e The rubber outer layer absorbs vibration, reduces rolling noise, and protects hard floor surfaces from marking or scratching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60kg Load Capacity Per Castor:\u003c\/strong\u003e Supports up to 60kg individually; when four castors are fitted, the combined maximum load capacity is 180kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc-Plated Pressed Steel Plate:\u003c\/strong\u003e Corrosion-resistant finish suitable for indoor environments including warehouses, workshops, retail spaces, and domestic settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Bolt-Hole Top Plate Fixing:\u003c\/strong\u003e Secure, permanent bolt-on mounting for stable attachment to equipment frames and furniture bases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlain Bearing:\u003c\/strong\u003e Low-maintenance bearing type suited to moderate-duty, regular-use applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 72mm Total Height:\u003c\/strong\u003e Low-profile build integrates neatly beneath furniture and equipment without raising clearance height significantly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-section\"\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cdiv class=\"pc-apps\"\u003e\n\u003cdiv class=\"pc-app-card\"\u003e\n\u003ch3\u003eWarehousing \u0026amp; Storage\u003c\/h3\u003e\n\u003cp\u003eSuitable for picking trolleys, shelving units, and storage racks where straight-line movement and load stability are essential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-app-card\"\u003e\n\u003ch3\u003eWorkshops \u0026amp; Light Industry\u003c\/h3\u003e\n\u003cp\u003eIdeal for workbenches, tool carts, and equipment stands in manufacturing and maintenance environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-app-card\"\u003e\n\u003ch3\u003eRetail \u0026amp; Hospitality\u003c\/h3\u003e\n\u003cp\u003eWell-suited to display units, service trolleys, and furniture in retail and hospitality settings where floor protection is a priority.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-app-card\"\u003e\n\u003ch3\u003eDomestic \u0026amp; Office Use\u003c\/h3\u003e\n\u003cp\u003eAppropriate for home storage furniture, appliance bases, and office equipment requiring occasional repositioning on hard floors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"pc-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCastor Type\u003c\/td\u003e\n\u003ctd\u003eFixed (Non-Swivel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFixing Type\u003c\/td\u003e\n\u003ctd\u003eTop Plate — 4-Bolt-Hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003ePlain Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Diameter\u003c\/td\u003e\n\u003ctd\u003e50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Colour\u003c\/td\u003e\n\u003ctd\u003eGrey (Rubber Tread) on Black (Polypropylene Core)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Material\u003c\/td\u003e\n\u003ctd\u003eGrey Rubber bonded on Black Polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTread Width\u003c\/td\u003e\n\u003ctd\u003e24mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Castor Height\u003c\/td\u003e\n\u003ctd\u003e72mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Capacity (Per Castor)\u003c\/td\u003e\n\u003ctd\u003e60kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Load Capacity (4 Castors)\u003c\/td\u003e\n\u003ctd\u003e180kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Material\u003c\/td\u003e\n\u003ctd\u003ePressed Steel — Zinc Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Length\u003c\/td\u003e\n\u003ctd\u003e60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Width\u003c\/td\u003e\n\u003ctd\u003e67mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Hole Centres — Length\u003c\/td\u003e\n\u003ctd\u003e48mm \/ 38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Hole Centres — Width\u003c\/td\u003e\n\u003ctd\u003e48mm \/ 38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Bolt Holes\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlate Finish\u003c\/td\u003e\n\u003ctd\u003eZinc Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable Floor Types\u003c\/td\u003e\n\u003ctd\u003eHard floors, concrete, tile, vinyl, laminate, wood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003eIndoor use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"pc-note\"\u003e* Load capacity figures are based on evenly distributed static loads across all four castors on a level surface. Dynamic loads, uneven surfaces, or impact loading will reduce effective capacity. Always consult a qualified engineer for critical load-bearing applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"pc-faq\"\u003e\n\u003cdiv class=\"pc-faq-item\"\u003e\n\u003ch3\u003eWhat is the difference between a fixed castor and a swivel castor?\u003c\/h3\u003e\n\u003cp\u003eA fixed castor is mounted in a set position and only allows movement in a straight line — forwards and backwards. A swivel castor rotates 360 degrees, allowing movement in any direction. Fixed castors are typically used in combination with swivel castors: two fixed at the rear for directional stability and two swivel at the front for steering. For applications requiring purely linear travel, all-fixed configurations are also common.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-item\"\u003e\n\u003ch3\u003eWill these castors scratch or mark hard floors?\u003c\/h3\u003e\n\u003cp\u003eThe grey rubber tread is specifically designed to be gentle on hard floor surfaces including wood, tile, vinyl, laminate, and concrete. Rubber-wheeled castors distribute load more evenly than hard plastic wheels and are far less likely to cause surface marking or scratching under normal operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-item\"\u003e\n\u003ch3\u003eHow do I fit a 4-bolt-hole top plate castor?\u003c\/h3\u003e\n\u003cp\u003eThe top plate is secured using four bolts (M6 or equivalent, not supplied) through the four 6mm diameter holes in the plate. The plate measures 60mm in length by 67mm in width, with hole centres at 48mm and 38mm in both directions. Mark and drill the corresponding holes in your equipment base, align the plate, and fasten securely with appropriate bolts, washers, and nuts. Ensure the mounting surface is structurally sound and capable of supporting the intended load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pc-faq-item\"\u003e\n\u003ch3\u003eCan I use these castors outdoors?\u003c\/h3\u003e\n\u003cp\u003eThese castors are designed and rated for indoor use. While the zinc-plated steel plate offers a degree of corrosion resistance, prolonged exposure to moisture, rain, or outdoor conditions is not recommended and may reduce the service life of both the plate and the wheel. For outdoor or wet-environment applications, a stainless steel or nylon-wheeled castor would be more appropriate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Castorsuk.co.uk","offers":[{"title":"Default Title","offer_id":56864442057084,"sku":null,"price":9.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/7003\/8451\/files\/50mm_Fixed_Castor_With_Grey_Rubber_on_Polypropylene_Wheel_4-Bolt-Hole_-_60kg_Load_Capacity-100.jpg?v=1781180491","url":"https:\/\/castorsuk.co.uk\/products\/50mm-fixed-castor-with-grey-rubber-on-polypropylene-wheel-4-bolt-hole-60kg-load-capacity","provider":"castorsuk.co.uk","version":"1.0","type":"link"}