Roger Jones Modified Eccentric

I've replaced the eccentric drive with a ball bearing drive. I'm really,really pleased with the smoothness after cranking 2 songs. Attached are a picture of the drive in the organ, and the drawings of the design. I made the replacement for the eccentric arm from 5/32" plywood, the adapter and keeper from steel, and used a little ball bearing from some computer application. Used Loctite to secure the crank arm parts and then pinned them together with roll pins. Any questions please email me Roger Jones