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1-1/4 inch Steel wheel
Glass Patio Sliding Door Roller Assembly
3/4 inch thick housing. 2-5/8 inch long, 1-3/8 inch high.
Uses a 10-32 machine screw in top and 1/4-20 frame screw above the adjustment screw.

Diameter: 1-1/4-inch
Housing Tab Style: Plain Back
Housing Width: 3/4-inch
Material: Steel
Roller Diameter: 1-1/4-inch
Roller Edge Type: Concave
Roller Material: Steel
Type: Concave
Width: 3/4-inch

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