Garage cleaning time. I have 18 new Nyle Kiln Cart Wheels. 6" diameter x 3" wide. They have a groove in the middle to run on flat track, or, on inverted angle iron. They are greasable, have 1" bore, and include the 1" to 1/2" reducer to use 1/2" bolts for axles. 2.500 lb per wheel load capacity. They look just like the picture on the Nyle web site:
http://www.nyle.com/shop/product.php?productid=16140&cat=249&page=1Current Nyle price is $44 each. I'll take $25 each, or make me an offer for multiples. They weigh right at 13 lbs each with the reducer. 10% to the Forum.
-w-