If you need serious industrial-grade wheels that can handle heavy loads, these CasterHQ V groove wheels are built like absolute tanks! Each wheel measures 5 inches in diameter with a 2-inch tread width, made from cast iron that can support up to 900 pounds capacity with a tensile strength of 30,000 PSI. The V groove design is perfect for tracking along rails or guides in industrial applications, providing stable movement for heavy equipment, machinery, or commercial carts. The roller bearing system includes a ¾ inch roller bearing with a ½ inch spanner bushing, and the hub length is 2-3/16 inches (2-7/16 with the spanner). The construction is seriously robust - we're talking commercial and industrial applications where reliability matters more than anything. Whether you're replacing worn-out wheels on factory equipment, building custom material handling carts, or need wheels for heavy-duty shop use, these deliver the performance and durability that cheaper alternatives just can't match. The bearing quality ensures smooth rolling even under substantial weight, and the cast iron construction means they won't deform or fail under pressure. Installation is straightforward if you're familiar with industrial hardware, and the specifications are precise for proper fitment. These aren't your average hardware store wheels - they're professional-grade components designed for environments where equipment failure isn't an option. If you're tired of wheels that crack, bend, or seize under heavy loads, these CasterHQ wheels provide that peace of mind that comes from using properly engineered industrial components that are built to last through years of demanding use.