single roller sliding door

Hi, I just installed parts for another slider I got from swisco. Amazing. Now I want to do all the doors. Unfortunately, different brands. The one I need now is similar to 81-148.. Mine has a notch near the tab, otherwise seems very similar. 1 1/8" steel wheel, 2 1/4" body, 3/4" width. The tab appear a bit longer at 3/4" than 81-148 but I don't see this dimension. The notch in mine does not engage with frame and appears that it would fit even without this notch. Thoughts?