Single 1-1/2″ steel roller assembly

Plain back patio door roller assembly with a 1-1/2 in. Concave steel ball bearing roller. It has a plain back housing that is 11/16 in. Wide and 1-1/2 in. Tall with a flare width of 13/16 in. And features a rear adjusting with a 1/4-20 threaded mounting hole on the back end. A #10-32 threaded optional use hole on the top. It is used by a variety of manufacturers of patio doors. Part# 131246