Pressed steel swivel castor, heavy duty castors, with top plate fitting, Heavy duty wheel with elastic solid rubber tyres ‘Blickle EasyRoll’, with nylon wheel centreBracket: Made of heavy pressed steel, with heavy fork and top plate, very strong bolted and secured central kingpin, double ball bearing in the swivel head, additionally reinforced by the integration of four specially shaped and hardened bearing seats resulting in a very high resistance to shock and impact loads. Bolted wheel axle. Bolted wheel axle. Zinc-plated, blue-passivated, Cr6-free.Wheels: Tyre & running tread: Made of high-quality elastic solid rubber in smooth rolling quality “Blickle EasyRoll”. Color: black, Shore: 65° Shore AChemical resistance to many aggressive substances, except oils. Operating temperature: -25° C to +80° C, temporarily up to +100° C. At ambient temperatures above +60° C the load capacity is reduced.