patio door rollers 41781

A handy person from San Francisco says:
I don't know the manufacturer of my patio doors but I need to replace the rollers. The part number on the rollers is 41781. The doors are about 23 years old. It appears to be 3/4 in thick, body 2 5/8 long x 1 3/8 tall with 1/1/2 inch concave roller. There are screw holes on the top and end for mounting, but my door has no screw holes on the bottom rail. The roller assembly mounts from the side rail. Mounting screw above the adjusting screw. I'll attach a photo.
User submitted picture of door rollers.
Profile picture of Dave
Dave from SWISCO responded:
Good afternoon! Thanks for posting. Please take a look at our 81-004 Air Control Door Roller. Do you think this might be a match?
A quick learner from Las Vegas, NV says:
Could you identify the replacement part for the attached pictures. The number on the side is 41781. It appears closest to your number 81-004 or 81-023.
User submitted photos of a patio door roller.
Profile picture of Tom
Tom from SWISCO responded:
Good morning, and thank you for posting. I have placed you into an existing thread regarding this roller. As you can see above, we could not find an exact match, but our expert Dave also thought that the 81-004 Air Control Roller seemed similar. Just make sure to confirm all your dimensions and make sure that they match the 81-004.
Reply to Thread
* Mandatory fields
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
81-004 : Patio Door Roller, 1-1/2
81-004
Price: $6.35
Patio Door Roller, 1-1/2" Steel Ball
81-023 : Sliding Door Roller, 1-1/4
81-023
Price: $9.45
Sliding Door Roller, 1-1/4"dia. Stee
How to maintain a sliding glass door
Guide
How to maintain a sliding glass door