the one i free handed was .003 off from being perfectly centered, but. the hole was exact and once i bolted the 2 halves together, the parting line match perfect but to me it looked like the bearing moved closer to the radius of the rod. i went a tad bigger on the hole and it gave enough to match it up both at the parting line and along the radius.....a jig should work wonders...i might just buy a drill press
|