Roller Assembly, 1-1/4 In. Tandem Wheels, Concave Edge, Ball Bearing (Single Pack)

This is a plain back tandem wheel roller assembly that is constructed of a pair of steel wheels and an adjustable steel housing. Each wheel has a concaved (center grooved) edge and features a steel inner race, steel ball bearings and a 5/16 inch roller width. The outside diameter of these rollers is 1-1/4 inch and they are used to replace damaged patio door roller assemblies in sliding glass doors. The housing is 1-1/32 inch tall, 11/16 inch wide and 3-1/8 inch long with a 1/4-20 threaded mounting hole on the back end, and an optional use hole on top. These tandem roller assemblies are used by a variety of patio door manufacturers. Mounting screw will need to be purchased separately if your current one is damaged (1/4-20 inch).