Patio door 1" wheel assembly

A quick learner from San Diego, CA says:
1 7/8" long, 7/8" high, 1/2 inch wide with a metal wheel diameter of 1"

Housing piece is 5/8" wide with the tabs at the top 1 inch apart. 2 1/8" long and 1" high.
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Casey from SWISCO responded:

Hello,

Your photos resemble the 81-125 roller assembly. Take a look and compare the dimensions below to your part. Thanks for posting. 

Alternate image for 81-125
Alternate image for 81-125
 

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