I have a disk that came off of an adjoining farm that I was able to purchase a few years ago. I have no idea the brand of the disc. I have used it for 4 years now for small projects. I decided to replace the blades and found three bearings down. The disk is around 10' and had two front gangs and two back gangs. They have block bearings that are held on with u bolts and have roll pins holding then on at the top. You basically drive the six roll pins out of each gang and raise the disk and the gang is off. I need to find some of these pillow blocks for this disk as they were ruined when the bearing went down. I cant tell what color it is so like I said I have no idea the brand. Thought someone might could help me out if I described it. It has 1 1/8 square shaft. It also has an adjustable tongue that levels the disk front to back. Thanks