8 x 3 Inch Kingpinless Swivel Caster Wheel with Side Brake – Featuring a solid polyurethane wheel, this kingpinless swivel caster provides smooth 360° rotation and reliable stopping with an integrated side brake. With a top plate size of 5-1/4” x 7-1/4” and a weight capacity of 2,500 lbs, it’s ideal for heavy-duty carts, work platforms, and industrial equipment requiring mobility, stability, and control.