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1-1/8 inch steel ball bearing roller unit
Adjustable steel housing assembly
Used by several glass door manufacturers
Housing dimensions: thickness, 9/16 inch; length, 1-3/4 inch; height, 1-1/16 inch; overall thickness, 25/32 inch.

Diameter: 1-1/8-inch
Housing Tab Style: U-Tab
Housing Width: 9/16-inch
Material: Steel
Roller Diameter: 1-1/8-inch
Roller Edge Type: Concave
Roller Material: Steel
Type: Concave
Width: 9/16-inch

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