1-1/4 in. Steel Ball Bearing Low Carriage Sliding Door Roller Assembly Single Pack, Prime-Line, Mfr#: D 1991

This is a unique housing tandem roller assembly used by a variety of manufacturers of sliding patio doors. It has two 1-1/4 inch concave or grooved steel ball bearing rollers set in line in a stamped steel housing with end adjustment . The square shaped housing is 1-1/2 inch tall, 11/16 inch wide and 4-1/2 inch long with two mounting tabs at each end of the housing. When the housing is inserted into the mortised area in the bottom rail, screws are used to fasten it in place. •Used by a variety of sliding patio door manufacturers •Unique style housing •1-1/4 inch diameter tandem concave steel rollers •Stamped steel housing with ball bearing rollers •Features end screw adjustment