Door roller repacements needed for old sliding patio door. Can also just replace the wheels only?

Original 60's era heavy aluminum sliding glass door. Need to replace rollers pictured. No markings on door for manufacturer or anything else. Roller says 'General Bearing Mineola NY'.

Roller wheels are 1 11/16 inch diameter, and 7/16 inches wide. I think with a 1/4 inch roll-pin axle about 3/4 inch long.

Pictures show the actual door, the roller assemble I removed, and the roller assembly as it is installed in the door.

In the picture showing the roller assembly IN the door frame, the bottom screw is the adjustment screw, the top screw just hold the frame together and is not removed.

The assembly is 1 inch high, and 1 14/16 inches long and 3/4 inch wide.

Thanks for your help.