Extra heavy swivel castors made with a fabricated steel castor bracket, fitted with a heavy duty nylon whee fitted with precision ball bearings . These Extra heavy swivel castors range from 150mm-250mm and have a capacity up to 2500 Kg per caster. Solid Nylon Wheels are often white although alternative colours are available, Nylon is less friendly to floors however, nylon wheels do offer incredible load capacity compared to many wheel materials. They are light in weight and very hard wearing and priced competitively. The special swivel castor head design of our DNXH series extra heavy swivel castors makes them well suited for high load applications we would recommend these to boat builders , crane and gantry manufactures or lifting equipment manufactures.