Flexa underbed storage wheel housing

After 25 years of use and abuse the wheel housings on our Flexa underbed storage have bent sideways and no longer do their job. This design is based on the Flexa original but adapted to address the weakness in their design as well as to make it printable on an FDM printer.
The original wheels clip in nicely and spin freely when this is printed in PLA at 0.3mm layers on my CR10S. The FreeCAD files are included in case you need to adjust the tolerancing for your printer.