Two brief questions:
Over time, the two little locking screws in this hub (https://www.pololu.com/catalog/product/1083) seem to be slowly loosening from the D-shaft from this gearmotor (https://www.pololu.com/catalog/product/1444) with increased usage. Is there another shaft/hub combination that would be more secure?
I’ve just acquired these new wheels (http://www.andymark.com/ProductDetails.asp?ProductCode=am%2D0048), plastic omni-wheels, to be exact. I’d like to hub them to the same gearmotor (https://www.pololu.com/catalog/product/1444), but the bolt pattern is larger = 1.875" diameter bolt circle. Does Pololu sell a hub that can fit it?