A dude in the USA has made some cast polyurethane drive rings that seem to work well.
Here’s a link to a YouTube video.
Shimpo RK2 4.75” drive ring
A dude in the USA has made some cast polyurethane drive rings that seem to work well. Here’s a link to a YouTube video. https://www.youtube.com/watch?app=desktop&v=Srqgf1KeSPU&fbclid=IwVERFWAOfMaZleHRuA2FlbQIxMQBzcnRjBmFwcF9pZA8xNzM4NDc2NDI2NzAzNzAAAR7Mb4fkPFF2JgospZHiNPxXxk2AbhcrMEeRFGYjKn1TQhs8hWtIdQEQccJttg_aem_qpwh3w-be04DIc7IkkfFpw
1–2 minutes
Umina Beach Pottery 
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