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1-1/2 inch steel ball bearing roller
Adjustable steel housing assembly
Used by Star-lite, Door Master, and other glass door manufacturers
Housing dimensions: thickness, 11/16 inch; length, 1-1/4 inch; height, 1-5/8 inch; overall thickness, 23/32 inch.

Diameter: 1-1/2-inch
Housing Tab Style: F-Tab
Housing Width: 11/16-inch
Material: Steel
Roller Diameter: 1-1/2-inch
Roller Edge Type: Concave
Roller Material: Steel
Roller Width: 5/16-inch
Type: Concave
Width: 11/16-inch

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