The Carrymaster ACSU Series is a new family of light-duty single polyurethane wheel casters with excellent performance in rolling and highly noiseless. The ACSU Series is highly recommended for light load trolley, light load carts, medical devices, and in many other light-duty mobility applications. Casters in the ACSU Series come in many different configurations: swivel flange (SF), swivel flange brake (SFB), rigid flange (RF), swivel stem (SS), swivel stem brake (SSB), swivel grip ring stem (SGR), swivel grip ring stem brake (SGRB). With a net weight from 0.15 lb to 1.26 lb and a load capacity from 33.07 lb to 88.18 lb, all Carrymaster ACLU casters are light and have a corrosion-resistant structure.