Stainless steel swivel caster with stem fitting. Wheel with thermoplastic polyurethane tread, with heavy nylon wheel center. Bracket: Made of pressed high-quality, chromium-nickel stainless steel (Material No. 1.4301/AISI 304), 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. All parts incl. axle material are corrosion-resistant. The stainless steel plug-in stem and central kingpin are screwed and secured or a single unit. Bolted wheel axle. Vibration-ground finished.