Need bottom roller assembly for slider window

A home owner from Gold Canyon, AZ says:
March 27, 2020
Can you identify this roller assembly part from a slider window and where I can order replacements? My assumption is that there was some type of coating on these rollers that has worn off causing a noisy and rough slide. House was built in 2000. This particular window has no identifying manufacturer info.
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Bob from SWISCO responded:
March 31, 2020

I'm afraid I don't have an exact match for this roller. Can you give us measurements such as the diameter of the wheel and the size of the housing? From there, we'll do our best to see if we have any substitutes. Many thanks. 
A home owner from Gold Canyon, AZ says:
March 31, 2020
Length of housing is roughly 1 7/16". Width of housing is 7/8" at its widest part and 9/16" at back end. Diameter of the wheel is roughly 3/8" now, but it appears it may have had a coating on when new. Width of wheel including support pegs on each side is approx. 3/8". Hope this helps.
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Bob from SWISCO responded:
April 1, 2020

Thanks for getting back to me. This appears similar to our 87-177, though it's not exact, so i can't guarantee it will work. Still, it's the closest option that we carry. I apologize we can't be of more definitive. Let us know how you make out.
Sun-Air Window Roller Assembly, 1/2" Flat Wheel
Sun-Air Window Roller Assembly, 1/2" Flat Wheel
87-177
$3.20
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