The Heavy Duty 75 x 32 MM / 3 x 1.25 Inch I-Section Wheel with Plain Bearing (Pack of 4) is a sturdy caster wheel designed with an I-beam or channel-shaped profile for enhanced strength and load distribution. Ideal for medium-duty applications like display racks, carts, or industrial equipment, these wheels offer reliable mobility in warehouses, retail spaces, or workshops. The plain bearing (also known as a sleeve bearing) provides cost-effective, low-maintenance rolling, making them suitable for environments where precision isn't critical. The pack includes four wheels for easy replacement or assembly.