Replacement Parts

A home owner from Porter Ranch, CA says:
I need a replacement part. See attached photo. The plastic wheel broke. The Charmac, Inc. sliding glass door was installed when the house was built in the early 1990's. Patent number USPat 4850145. The letters TMM are below the patent number. The casing is 1.5 inch wide.

Let me know if you need anything else.
User submitted photos of a patio door roller.
Profile picture of Paul
Paul from SWISCO responded:
Our 23-064 mirror roller looks like a match, but see how well its size matches up to yours.
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