100+ views and no comments, hmmm, no experience here with grinding flywheels with cbn wheels, or did I not phrase my question properly?
Looking at WVN site
SUPER ABRASIVE GRINDING WHEELS there are 3 different 6" wheels, one is listed as "rough grit" no grit size given, thru some research I figured out another is "finishing" again, no grit size given. Third is Diamond CBN, no info on rough or finishing, or its application.
Looking at the Goodson site
CBN Flywheel Grinding Stones | Goodson Tools & Supplies most are simply labeled CBN wheel, 2 are listed as 60 grit, no grit size listed for the rest. The diamond wheels is described as "Diamond Flywheel Grinding Wheels are designed for use on spray coated floaters and flywheels." Anyone know what they mean by spray coated?
Talking to a rep a few years ago I was given impression that the cbn wheels were a "does all types" wheel, yet according to the Goodson site they are only for cast iron. Question, what happens if you use a cbn wheel to grind a cast steel flywheel?
I've always used silicon carbide wheels in the past, as they were suitable for cast iron or cast steel, no info left on the old blotter, but it looks like a course grit. More than a few vids in youtube showing flywheel grinding with cbn wheels, they grind till face is clean, no switching from roughing to finishing wheels, but I guess that could have been edited out.
WVN and Goodson just supply a niche market, I'm guessing there are other sellers of cbn wheels, short of MSC I'm not sure where else to look. I see cheap cbn wheels from China, but would prefer to deal with an established business that can offer product support, and has some quality control. The wheels I need are cupped wheels with a 1.250" dia center hole, I don't know what grits to ask for.