Looking for a pair of motor hubs that fit a shaft that tapers from 17mm to about 14mm over a 50mm length, with a 5mm keyway. I know at least some Quantum chairs came with these, but maybe others too?
I don't care about the bolt pattern for the wheels, as I'll be cutting that part off for this project anyway. I'm in the U.S., so probably only practical for shipping from someone else in the U.S.
Let me know if you have a pair you want to sell. Thanks!
(pic for reference)