I've long been tired of designing reel brackets for each brand separately, because there doesn't seem to be a unified standard for the size of the reel holes.

If you need to modify the design according to your own needs, I have uploaded the SketchUp file to the cloud for you to download and use.

Updated on August 12, 2018: I have optimized the design of the 608 bearing, but I haven't actually printed and tested this version yet.