I need a whatchamacallit

But I don’t know whatcha call it. I’m trying to refurbish an old sewing machine desk with machine that swings up from underneath. I keep seeing plenty of pictures with similar mechanisms along the top edge of the opening, but cannot find anything stating the name of the part. It’s round and fits into a recessed part of the tabletop, with a doohicky that swings up and down. I have one, but need another. Anybody know what it’s called and if/where I could purchase one? I’ll post a picture soon.
Replies
Google 'sewing machine hinge', many images will show cabinet hinges, but some images are hinges that attach to the machine.
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Here's what you are looking for:
https://www.teamworksales.com/store/p2007/44139-12361-table-hinge-set.html
Just double check you hinge diameter.
here's another on ebay:
https://www.ebay.com/itm/TABLE-HINGE-SET-OLD-STYLE-fits-CHANDLER-DY-337-INDUSTRIAL-SEWING-MACHINE-/300950786961