Glass slider door wheel chassis

I'm hoping you can help me identify and provide several of the slider wheel rollers identified in my pictures. I did not see that you needed the pics of the rollers installed in the door until the door was reinstalled (it is a large project to get them out), but they are fastened to the door frame using the bolt you will see on the left side of pic 1825. Please note all measurements are in cm (not inches).

Our house was built 8 years ago, and this two-sided sliding door is becoming increasingly difficult to open, so I am looking to replace our main terrace door rollers now, but to pick up several spares for use in other doors in the house at a later date. I'm probably looking to source 8-10 of the mechanisms.

The windows/doors were built in France, if that helps you narrow your search. The window company that installed is out of business for several years now, and there is no identifiable branding we can find.

If you would like to suggest a call, I will call you to discuss alternatives.

David

Paul,

Yes, you are correct that the tape in in mm. 81-138 looks about right as well. Can you please tell me the typical track measurement I should be looking at to ensure the 81-138 wheels are compatible with my track. Once I have that nailed down, it's time to order.

Many thanks for the help.

Regards,

David R.