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1-1/4 inch nylon ball bearing roller
Adjustable steel housing assembly
Used by several glass door manufacturers
Housing dimensions: thickness, 3/4 inch; length, 2-5/16 inch; height, 1-1/4 inch Overall thickness, 7/8 inch.

Diameter: 1-1/4-inch
Housing Tab Style: E-Tab
Housing Width: 9/16-inch
Material: Steel
Roller Diameter: 1-1/4-inch
Roller Edge Type: Concave
Roller Material: Steel
Roller Width: 5/16-inch
Type: Concave
Width: 7/16-inch

Helpful Article: How to Replace Rollers in an Aluminum Sliding Glass Door