Need some help picking a surface grinder wheel

[tjb]

I've just about completed an upgrade on a very nice surface grinder I bought a few months ago. Very nice machine. That's the good news. The 'not-so good news' is I'd like to get a new disk for finishing work but have no idea how to select and/or evaluate a disk. It currently has a white disk on it that seems to be working fine but leaving a slight visible pattern. Is this normal? I got some improvement by dressing the wheel, but I'd like to get a new wheel for comparison purposes or, at the very least, for a backup.

Based on some very limited research, it seems what will suit my purposes best is another white wheel, but I'm completely lost on how to evaluate all the codes. For example, Travers Tool has this one posted on ebay:

Radiac A102954 6"x 1/2"x 1-1/4" WA60-J8-V8 White Alum Oxide Surf. Grinding Wheel.

The size - 6"x1/2"x1-1/4" - is correct for my machine. And it's White. But I have no idea how to evaluate the 'WA60-J8-V8' code. I also 'think' the WA indicates general use; the J indicates 'soft' for hardness level. Is this correct? I have no idea what the V designation is.

Any help would be much appreciated.

Regards,
Terry

 

[mmcmdl]

Norton 32A46 or 60 is a great all around wheel .

 

[tjb]

Norton 32A46 or 60 is a great all around wheel .

Thanks. That's what I need to hear!

 

[mmcmdl]

Carbide would use a silicon carbide wheel ( green in color )

 

[tjb]

Carbide would use a silicon carbide wheel ( green in color )

Still practicing with this machine - only playing with cold rolled so far. What's the difference between gray and white wheels?

 

[sdelivery]

Check out the wheel use section

Always Cleaning, I came across some old manuals. circa 1946
I loved the sliders, charts and cheat sheets that used to be available from manufactures.

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[tjb]

Check out the wheel use section

Okay, that's a big help! After looking through what you sent, I did a little digging and found this:

Grinding Wheel Basics – What’s in a Wheel

Grinding wheels play an important role in many applications and are one of the most commonly used abrasive products. Discover how they’re made, and learn how to decipher your wheel's specification.

www.nortonabrasives.com

Thanks for the information.

Regards