There is a washer that site between the wheel and the carriage! I would take the wheel off again, make sure the washer is there, then retighten it to the carriage and see if it spins without the belt on.
No sooner did i say that , a low and behold i found that Micro Washer , I thought I had watched carefully to see if there was a washer but it was on top of the Bolt .
Thank you So much,
For those that try this , Remember that washer goes on the top of the new wheel and not the bottom ,