This 4-inch by 3.25-inch Standard Polyurethane (Shore 95A) Wheel is engineered with a polyurethane formulation that sets the benchmark for durability and performance in demanding applications. Equipped with a straight roller bearing, this caster wheel delivers exceptional load-bearing capacity, stability, and reliable movement. The straight roller bearing design provides robust support for heavy loads, making it ideal for industrial environments. With a Shore hardness rating of 95A, this wheel offers superior resistance to wear and tear, ensuring long-lasting durability in diverse operating conditions. Its high tear strength, resistance to flat spotting, and excellent solvent and water resistance further enhance its reliability in diverse environments while carrying loads up to 1275 lbs.