This is a plain back patio door roller assembly with a 1-1/4 inch concave steel ball bearing roller. It has a plain back housing that is 3/4 inch wide with a 7/8 inch flare and 1-3/16 inch tall. It is rear adjusting with a threaded mounting hole on the back end. It is used by Nu-Air and a variety of other sliding patio door manufacturers.
Typically used on Nu-Air sliding patio doors and a variety of other sliding patio door manufacturers
Threaded ride height adjustment screw hole
1-1/4 inch concave ball bearing roller and steel housing
Take note of the assembly body on your door and its width, if there are bumps on it, the position of the adjustment screw hole and the diameter of your roller
Please review the line art drawing for dimensions and compare with your needs before ordering (Not Universal)