4 Inch 3/8"-16x1 Stem Caster, with Dual Brake Double Bearings | Heavy Duty Swivel Rolling Wheels, Set of 4, for Large Cart, Shelving, Workbench and Furniture
COMFORTABLE USE: 4 inch big polyurethane wheels, paired with strengthened brackets. More efficiently in the use of carts, dollies, furnitures, grills, racks, shelves, trucks, workbenches and so on
SMOOTH DOUBLE BEARINGS: Enable smoother movement when transporting heavy objects. Also make the caster have better wear resistance and load bearing capacity
STABLE DUAL BRAKES: One-step locking design brakes both rotation and rolling. The shelves can be stably parked on the ground, greatly improve the safety during use
STANDARD SIZE: The diameter of the stem is 3/8 inch (9.5mm), and stem length is 1 inch (25mm). The diameter of the hub is 4 inch, and the height of the casters ignoring the stem is 5-1/8 inch (130mm)
PAYLOAD CAPACITY: The wheel part is heavy duty design, but the stem cannot withstand too high lateral tension. So the carts that need to be pushed frequently, the load capacity should be below 500 pounds (125 pounds per wheel) to be more stable