Find Standard Casters at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years 6" Diam x 2" Wide x 7-1/2" OAH Top Plate Mount Swivel Caster with Brake Polyurethane, 1,000 Lb Capacity, Sealed Precision Ball Bearing, 4 x 4-1/2" Plate