SWISCO - The Replacement Hardware Authority

Sliding Door Bottom Single Roller, Del Mar = 81-256?

A handy person from Oregon says:
I'm looking for a replacement roller set (see attached pictures) for an oldish sliding glass door. The 81-256 looks similar to my worn-out original Del Mar Engineering roller and the 81-256 also looks similar to the P. E. Del Mar 4468 D-7001-5-NA,.78 roller - are they interchanges?

The upright mounting tab on my old Del Mar Engineering roller has a higher mounting hole on its straight tab than the 81-256's mounting hole on its offset tab - could the 81-256 mounting tab be straightened to get the needed 1 3/8" mounting hole height?

My old roller is a 1 1/4" nylon wheel on a ball bearing hub - am I correct to think that this is one of the options on the replacement (81-256?) roller assembly?
A customer submitted photo of a door roller.
Profile picture of Dave
Dave from SWISCO responded:
Thanks for posting. It appears as though our 81-256 Sliding glass door roller is the closest possible match we have at this time. Our tab is a bit different, but I don't believe that it should affect the roller that much. It would just go into the door a little further. I would just re-check all the dimensions of your roller as compared with our 81-256.
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