What is this Burr Removal process

[Oceanrider]

I'm sure many of you have seen this professional sharpening tower...



Can anyone identify these wheels exactly?
Specifically the two on the grinder just above the belt grinder.

[Mike Brubacher]

Good post and good questions Oceanrider. Mike Solaegui is a very knowledgeable and approachable guy. I'll drop him a line and see if he can post an answer to your questions.