The NH528SW is a net hanger curtain roller, 38mm diameter x 29.6mm width, fitted to the slotted strap section of a curtain-sider trailer to carry the net hanger. LoadMonkey supplies this part to keep curtain-sider fleets moving, swapping out tired rollers before they start marking or snagging the sheet.
A good call when you're already replacing several rollers along the same rail.
