5 Inch Polyurethane Swivel Stem Caster with Brake, 316 Stainless Steel, Smooth Rolling and Durable Frame

#20 expanding stem polyurethane casters for tubemounted equipment provide a durable, quiet, and versatile wheel solution for carts, racks, furniture, and mobile workstations. Available in multiple wheel sizes, stem diameters, colors, and brake configurations to match common tubing and mobility needs. Key benefits Simple retrofit and replacement for tubemounted equipment thanks to the expanding stem design. Polyurethane tread delivers smooth, floorfriendly rolling and long wear life for frequent use. Multiple weight ratings let you select the right caster for load and stability requirements. Brake options allow either wheelonly locking or complete wheel and swivel locking for secure stationary positioning. Features and specifications Wheel sizes available: 3 inch, 31/2 inch, 4 inch, 5 inch, and 6 inch. Mounting heights: 3 inch wheel equals 41/8 inch mounting height; 31/2 inch equals 45/8 inch; 4 inch equals 51/8 inch; 5 inch equals 61/8 inch. Weight capacity per caster: 3 inch and 31/2 inch at 300 pounds each; 4 inch, 5 inch, and 6 inch at 350 pounds each. Wheel colors available: Gray, Blue, Red, Maroon, and Black. Wheel material: Polyurethane tread over a durable core. Expanding stem length: 211/16 inch. Expanding stem diameters available: 3/4 inch, 7/8 inch, 1 inch, 11/8 inch, 11/4 inch, 13/8 inch, 11/2 inch, 15/8 inch, 13/4 inch, and 17/8 inch. Brake options lock brake (TLB): Locks the wheel tread only. Available for 3 inch, 31/2 inch, 4 inch, and 5 inch wheels. Total lock brake (TTL): Locks the wheel tread and the swivel simultaneously for a fully stationary position. Available for all wheel sizes. Compatibility and ordering guidance The expanding stem requires a matching inside tube diameter. Measure the inside diameter of your tubing to select the correct stem diameter. If you need assistance measuring or do not see the diameter you require, contact your supplier or customer support for guidance. Typical applications Retail display racks and mobile shelving where quick, tool caster replacement improves uptime. Service carts and workbenches that require smooth polyurethane rolling and selectable load capacity. Modular furniture, trade show displays, and equipment that mounts into tubular legs or sockets and needs optional locking for safety. Choose the appropriate wheel size, stem diameter, color, and brake option to match your tubing and load requirements. If you need help confirming fit or selecting the configuration, reach out to your supplier or customer support for assistance.