This is a K-tab patio door roller assembly with a 1-1/4 in. concave or grooved steel ball bearing roller. The T-shaped tab (K-Tab) is simply slid up into a T-shaped receptacle in the bottom of the patio door. No screws are required. The housing is 5/8 in. wide and 1-3/16 in. tall with a flare and a 3/4 in. dimple width. Used by International and a variety of other sliding patio door manufacturers.
This is a K-tab patio door roller assembly with a 1-1/8 in. concave steel ball bearing roller. The T-shaped tab (K-tab) is simply slid up into a T-shaped receptacle in the bottom of the patio door. No screws are required for installation. The housing is 3/4 in. wide and 1-1/4 in. tall with a 7/8 in. dimple width. The dimples secure it within the door's bottom frame. Used by a variety of door manufacturers.
This is a K-tab patio door roller assembly with a 1-1/2 in. concave steel ball bearing roller. The T-shaped tab (K-tab) is simply slid up into a T shaped receptacle in the bottom of the patio door. No screws are required. The housing is 3/4 in. wide with a dimple width of 7/8 in., 1-1/4 in. tall and 2-1/4 in. long. The dimples secure it within the door's bottom frame. Used by Marshall and a variety of other sliding door manufacturers.
This is a C-tab patio door roller assembly with a 1-1/4 in. diameter concave, or grooved, steel ball bearing roller. As the C-shaped tab fits around the corner screw, it is captured by the side stile and bottom rail as the screw draws the two sides together. The housing is 23/32 in. wide and 1-3/16 in. tall with a dimple width of 7/8 in., and is most often used by Solar Industries and a variety of other patio door manufacturers.