This is a plain back patio door roller assembly with a 1-1/2 inch concave or grooved steel ball bearing roller. The housing is 3/4 inch wide and 1-1/8 inch tall. It is rear adjusting with a 1/4-20 threaded mounting hole on the back end and an optional use #10-32 threaded hole on top. It is used by a variety of sliding patio door manufacturers.
Stamped steel housing with ball bearing roller
Features rear screw adjustment
Used on metal and vinyl framed sliding patio doors
A Phillips head screwdriver is required for installation