The Shepherd PUT75116BK-B swivel caster features 2.9527" nylon twin wheels and a 2-3/16" x 2-9/16" Top Plate, capable of a 165 lb. capacity per caster. Complete caster specifications and downloadable CAD model are provided below. Ultima twin wheel casters combine economical mobility with some of the highest load ratings in twin wheels. Featuring a strong nylon body construction and options of nylon (most economical) or floor-protective polyurethane wheels, you will be sure to find the right caster with the large variety of sizes, fastening types, and brake options. Its durable construction features solid riveted axles, ensuring positive wheel retention that will handle heavy loads. This series is a popular choice for store fixtures, furniture, displays, office equipment, and carts.