Alternative Replacement 13108 with 1-1/8" steel wheels.

2--1-1/4 inch tandem steel ball bearing roller
Adjustable steel housing assembly
Used by Pacific and other glass door manufacturers
Housing dimensions: thickness, 11/16 inch; length, 3-1/8 inch; height,1-3/32 inch; overall thickness, 13/16 inch

Diameter: 1-1/4-inch
Housing Tab Style: C-Tab
Housing Width: 11/16-inch
Material: Nylon
Roller Diameter: 1-1/4-inch
Roller Edge Type: Concave
Roller Material: Nylon
Roller Width: 5/16-inch
Type: Concave
Width: 11/16-inch