I have a rotating display that I am converting to use an Arduino and it uses a RF-500TB-12650 6V-8V motor with a 3mm diameter shaft. These types of display use an inner and outer coil to inductively transfer power between the base and the rotating head on the motor. The inner coil wraps around a plastic (It looks like plastic) coupler that friction fits over the shaft(See Picture). I need to order some of these plastic couplers for my new display, but I cannot figure out where to get them or even what they are called to search for them. I have seen some displays that use just the coupler or ones like this one that has a mounting structure that I can use to mount to a board. Does anyone know what these are called and
That is almost certainly a custom manufactured part, however anyone with a small lathe could turn and bore a part matching that in just a few minutes, from plastic rod stock.
There might be a shared "Maker Space" or similar collective in your area with the needed equipment.
