Coupler for 8mm CMI motor

Does anyone make a coupler that will go from the 8mm shaft of the CMI motor to a standard 0.50 shaft with keyways?

We want to drive our ball thrower directly off of the CMI motor but cannot find a coupler to go from the 8mm motor shaft to the 0.50 wheel hub.

did you look at the replies to your previous thread?

also it would help if you told us if you want to connect to a 1/2" shaft, or you want to make the motor shaft into a 1/2" shaft so you can put something with a 1/2" hole over it

http://andymark.biz/am-0320.html

if u want to drive another shaft directly combine that with any other of these hubs http://andymark.biz/hubs.html