Swivel castors made using a fabricated steel castor bracket, fitted with 2 injection moulded polyurethane tyred wheel fitted with 2 precision ball bearings. These heavy duty swivel casters range from 125mm-200mm and have a capacity up to 1000 Kg per caster. polyurethane tyred wheel are friendly to floors offer incredible load capacity compared to many wheel materials. They are strong and very hard wearing and priced competitively. Typical application warehouse picking trolleys , waste bins and manual handling equipment. These heavy duty castors will not mark floors and roll well on good floors. They are powder coated again to help prevent and guard against the environment which could cause premature castor failure.