I also selling some aluminum end bearing blocks that I bought from Precision Tech Maching,, 1/2"thick x 1 1/4"x2" with 5/16" double sealed bearings, and 4 1/4" mounting holes. I have a total of 6, but I am selling in a group of 3 for only $21.00.Ebay item number 150427876294. These are new, I have changed the screw size on the machine I am building, and I have no use for these.
These 3 end blocks sold today on ebay, but I still have three more available. PM me if you are interested.