Cat Treadmill Wheel

This is a cat treadmill wheel for cat exercise. The inside diameter of the wheel is 25.6" (250mm) and the width is 10.8" (275mm). There is also a narrow wheel version that is 6.9" (175mm) wide. It uses small ball bearings that can be purchased online. Search for
Wellgo 608-2RS 8mmx22mmx722 ball bearings for skateboards or anything similar. They are not expensive.

NOTE: I have not printed this, and so I do not know how well it works. I would like to, but we don't quite have room for it. But I would love for someone to print it and show it here!!

Instructions:
Print 12 of the wheel sections and then screw them together using 1" #6 screws. You may want to print with at least 4 walls in order to give enough material for the screws to screw the wheel sections together. Print 2 of the left base and 2 of the right base, 2 of the short connector, and 2 of the male and female long connector. The male and female long connectors can be glued together. Print 8 of the bearing sha