Omni wheel help

Hello everybody. 

I am trying to make holonomic robot.

Wondering if someone can help find the motor which will fit in my omni wheel ( flush fit). If you have used vex wheels let me know which ones you used and motors you have used in yuor robot.

I am using 

VEX IQ 63mm Omni Wheels (2pk)

Product Code : RB-Inn-319

https://www.robotshop.com/en/vex-iq-63mm-omni-wheels-2pk.html

 

let me know if you can help me with it.

thanks in advance