87-120, but 1/32" thinner

A home owner from ohio says:
Hello, I have a question about this window roller. the third pic for this part shows a measurement of 7/16" at the roller end. I have this same part on a 30 year old window, but it is 1/32" smaller. Same part?

Thanks
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Tom from SWISCO responded:
I'm really not sure. Is it otherwise identical? If so, it's possible it just wore down a little over time.
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