wheel for sliding glass door

A quick learner from USA says:
I'm replacing these on my sliding glass door. The picture is of my old one that is 2 3/4" long and has a 1 1/4" wheel. The closest I've found on ur site is product code 81-049 but it's 3 1/8" long with a 1 1/2 " wheel. The widths are the same. Do u have one like mine or do u think 81-049 will work? Any help will be appreciated.
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Bob from SWISCO responded:

Hello there. What's the height and width of your roller's housing? The length isn't actually so important, since there's plenty of "room" for the roller lengthwise, but those height and width dimensions are pretty critical. The 81-049 is 11/16" wide and 1-3/16" tall. As far as the wheel diameter, you could adjust the roller in the 81-049 to make up for a +/- 1/4" difference. Let me know what you think.

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