Likit heavy aluminum roller 1985

A home owner from Danville, CA says:
Hello Can you help me identify a pair of replacement rollers for my 1985 Likit sliding aluminum and double paned glass sliding patio door?
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Casey from SWISCO responded:

Hello,

Take a look at the 81-039 and 81-256 rollers that are similar to yours. Review the images from our product pages below to see how the dimensions compare to yours. Thanks for posting! 

Alternate image for 81-039
Alternate image for 81-039

Alternate image for 81-256
Alternate image for 81-256

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