Prime-Line D 1533 D1533 Concave Edge Sliding Door Assembly, 1-1/2 in Dia X 5/16 in W, 1 Roller, 1-1/2-Inch 1-1/2in. O.D. Steel ball bearing center grooved roller Housing dimensions: W: 3/4in. L: 1-1/2in. H: 1-3/16in. Adjustable die cast housing assembly Fits Fleetwood Full view and many other glass door manufacturers