The dimensions are as follows:
Width - 1/2 inch
Height - 1-1/32 inch
Length - 2-1/2 inches
Diameter of wheel - 1-1/8 inch
Wheel is concave, metal and has ball bearings
No identifying marks on the assembly or door. It is a sliding door in a four seasons room
Assembly is held in place inside An aluminum U channel. Second picture shows the assembly inside the U channel.
I can be reached if more info is required or there are questions.
