Window Roller - No identifying info found on window/roller

A quick learner from Sedona AZ says:
June 21, 2020
Hello,
I need four new rollers. Windows about 25 years old and slide very roughly and noisy along rail. Any other suggestions would be much appreciated. I'm using Elmer's dry silicon spray to lubricate slide; is there anything better?

If they work great, I will order many more for the whole house.

Thanks,
Geoff
Thumbnail of the uploaded file named Window Roller II.jpg
Thumbnail of the uploaded file named Window Roller.jpg
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Paul from SWISCO responded:
June 25, 2020

Hello,

Take a look and compare our 87-180 roller assembly to yours. If the dimensions match up, replacing the rollers should help your shashes operate much smoother and quieter. Thank you!
Merzon Sliding Window Roller, 3/8" Concave Wheels
Merzon Sliding Window Roller, 3/8" Concave Wheels
87-180
$4.37
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