Need new rollers for sliding glass door

Hello Swisco,

The sliding glass door on my older home is having problems with the rollers. I cannot see a manufacturer's name on the door, but when I removed the handle, it had a patent number that matched Swisco (Canadian patent #919213).

Attached are pictures of the roller. I need two of them. If you need exact dimensions, I would be happy to provide.

Do you have any patio door rollers that match my requirements?

Thank you,

Chris 

Hello Dave Sr. - thank you for the reply. I am willing to do whatever to fix. I already removed the door, bottom piece, and more to get the roller off to take the pictures. I do not see the width and height specifications for this roller. I'm on my phone, so maybe I need to view from my computer to see more detail. Can you please provide the dimensions.
Questions - (1) if I purchase and it doesn't fit, what is your return policy? (2) the door is rather heavy - could I put a third roller in the middle of the door to make it roll smoother?
Thanks,
Chris