Hi all,
I have a Signatone S-250-5 manual prober with a broken belt for the probe ring raise/lower function. (see picture) As far as I can tell, the belt is made of some type of plastic and it rolls two sprockets to raise and lower the table when I pull a lever. I'm having a rough time trying to find a replacement, let alone figuring out what to name it.
I've tried plastic chain drive, belt drive, etc, in internet searches and came up with nada. The manufacturer is non-responsive. The equipment is fairly old so I doubt it's worth their time to even see if this is still replaceable.
Any assistance you might give will be greatly appreciated. To even know what the item is actually called would at least point me in the right direction! 

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