Pressed steel swivel castor with top plate fitting, Wheel with standard solid rubber tyres, with synthetic rimBracket: Made of pressed steel, with double ball bearing in the swivel head, ball protection by the special top plate and ball disc design. The special Blickle dynamic riveting process of the swivel head results in minimal swivel head play and smooth rolling characteristics with an increased service life achieved by the work hardening of the ball race grooves. Bolted wheel axle. Zinc-plated, blue-passivated, Cr6-free.Wheels: Tyre & running tread: Made of standard solid rubber. Color: black, Shore: 80° Shore AHigh chemical resistance to many aggressive substances, except oils. Operating temperature: -20° C to +60° C. At ambient temperatures above +30° C the load capacity is reduced.