Set screw hub

I have received Gear Motor Cradle Tilt (6" Cradle) P/N637124. I like it, but I have a problem: I cannot get the included: 6mm (0.700") Set Screw Hub to lock on motor shaft. Is there a fix? Can I shim the hub?
I would prefer not to make the shippers rich. I don’t want to return the hub if not neccesary.
Please advise.
Thank you.
Sean Bishop
[email protected]

Good day to you,

We also received a ticket through our support centre, one of our technicians already replied, if you missed the answer please let us know.

Sincerely,