Contact ebay seller “ laherbau “. He makes ‘em for the Russco tables as well as others, out of Delrin, with a square section O-ring and properly sized Oilite bushing. I have one of his in my Studio Pro and bought another for a spare. They’re extremely well made, fit and work perfectly. They’re also quieter than the original Russco puck. The seller/maker’s name is Abe. BTW - some of the quietest Russco tables around are using his idler wheels.
Russco cue master Idler rim replacement
Help anyone, I need to find a new one or used that is not out of round to buy,Thank to anyone that replies