Looking for a backstand idler wheel

[flatgrinder]

Anyone know where a person can get one these days?

I know Sheffield's and Texas Knifemakers has one version, but I'm looking for something a little more substantial.

I remember seeing a good one sold by Enco, MSC, or one of the other online distributors -but I can't find it now... any ideas?

 

[Sweany]

best one I know of.
http://www.mstarling.com/belt_grinder.html

 

[JCaswell]

I usually buy a bearinged idler pulley from Bader. They will make them any size you want, but I find their 6-inch standard BIII style to be more than sufficient. (I think it's about $125)
One nice thing is that they are well-crowned. It seems the larger, crowned wheel makes for good tracking. I almost never adjust tracking on any of my grinders even after belt changes and they've been going for years.