The Power Products Trailer Axle is designed to provide superior strength and durability for your trailer. These shafts are precision-machined to ensure correct diameter and accurate journal bearings size. The splines are machine-rolled for durability, providing a smooth contact surface for longer roller service life. They are also heat-treated for superior strength and durability. The high-grade alloy steel construction ensures maximum strength and durability, while the precision-ground and hardened shafts provide maximum strength and durability. FleetPride is your First Click in Heavy Duty®.