Wheel assembly for ASTR BEC OMCO sliding glass door

A quick learner from Altavista Va says:
ASTR BEC OMCO written on top in circular shape, wheel is 1 7/16 inches in diameter,, 5/16 inch wide, interior case is 1 1/4x 7/16x 2 5/8, the exterior case is 2 5/8x1 3/8x11/16. Believe door manufactured by West Window in Martisville, Va in mid 1990s.
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Tom from SWISCO responded:

Hello, thanks for posting! We have several rollers that match the design of your assembly, but only one that comes close to your dimensions. I say "come close" because there are some slight differences that you'll have to double check.

The product in question is our 81-278. The outer housing is 1-3/8", like you described, but the outer housing width is 3/4", not 11/16". The roller is also 1-1/2" instead of 1-7/16".

These three dimensions are the most important. If they match, then the 81-278 will probably work well in your door. Please double check your measurements and let me know how they compare after another pass.

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