Looking for a source of small pulleys and belts. I have a dry hull sub with single piston tank, and would like to fit a ballast slider to change my CG as the tank fills, well to fine trim the boat any way.
Power is obviously low, looking for a pinion pulley to go on a 2mm motor shaft, and a larger pulley , say max 40mm, with 4mm threaded shaft.
any suggestions?