This is a Split Pillow Block or Bearing block for a 608xx bearing. You can watch a video of how I created this Pillow Block, or visit my channel www.youtube.com/mathcodeprint for other tutorials.
Follow this account on Thingiverse if you are interested in a parametric version for this for OpenSCAD. I will also be completing tutorials for Fusion 360, OnShape, TinkerCAD and BLocksCAD
The Pillow Block pictured is an early version. The model shown has nut capture so you can use either bolts of specific length or hex hold bolt from the bottom to allow for various length bolts.
I only printed the initial model so let me know if it works.
The source of this will be on my website www.mathcodeprint.com ( eventually )