Light duty swivel castor with bolt hole fitting, Wheel with thermoplastic rubber tread, with polypropylene wheel centreBracket: 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 thermoplastic rubber elastomer (TPE), contains traces of oil. Color: grey, Shore: 85° Shore AChemical resistance to many aggressive substances, except oils. Operating temperature: -25° C to +80° C. At ambient temperatures above +60° C the load capacity is reduced. Maintenance-free under standard conditions. The tread contains traces of oil. On absorbent surfaces this can cause some staining. As an alternative, we recommend the wheels of the VPA, VGA or PATH series.