Hard rubber molded composition. Wheel is impervious to oil, grease, and gasoline. High-load rating, good mobility, high-impact resistance, and good floor protection. Used on dollies, carts and racks.
Swivel: Two rows of ball bearings in hardened raceways.
Fork: 1/8" formed steel plate.
Axle: 1/4" diameter bolt and nut for small plate; 3/8" diameter bolt and nut for large plate.
Finish: Chrome or Zinc Plated.