Need some ideas on a vertically mounted roller(cat line). 3" pipe, 5 ft long 1"dowel(cr) in the middle and bearings on each side(top and bottom). the mounted bearings (four holes)at Fastenal are a little lite and would better purpose a horizontal roller (like on a conveyer belt). has anyone ever built anything like this? the existing roller doesn't have a race on it (blew out), so I don't have the numbers to order a new bearing. also, its going on a drilling rig so its gotta be tough. thanks guys also thought of pipe inside a pipe (welded)w/ bearings flush to ends, but don't know if this would spin, or stay off the floor. uh, thanks again