Prime-Line Products D 1532 Sliding Door Roller Assembly with 1-1/4-Inch Steel Ball Bearing 1-1/4in. O.D. Steel ball bearing center grooved roller Housing dimension: 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