Source for Bench Grinder Arbor Adapter/Reducer?

[LNKMK8]

I've been looking around for a while and haven't been able to come up with much. I'm looking for an adapter/reducer for my bench grinder so I can run a wheel with a 5/8 arbor hole on my 1/2 arbor. It seems some wheels (Norton as an example) come with a plastic bushing of questionable quality, and other brands do not. I found these on Amazon, but was hoping to find a couple other options.

https://www.amazon.com/gp/product/B01ED30XRY/?tag=atomicindus08-20

 

[PacificaVette]

These work well. I bought one for my grinder to use with the 5/8" arbor wheel.

https://www.woodturnerscatalog.com/p/97/6196/Raptor-R3X-Grinding-Wheel-Bushing-2-Piece-Set