Bearing - 12x18x4 - OpenRC F1 Rear Wheel

I have some OpenRC F1 cars that are only being displayed and won't be driven (anymore). I didn't want to waste actual bearings by having them sit on the car, but the bearings are required for the wheels and axels to fit together correctly. I made these “bearings” to replace the rear wheel 12x18x4 bearings. These will not hold up if you actually try and drive your car, they are only for allowing you to put it together without purchasing bearings. The interior hole is slightly larger than normal and the outer diameter is slightly smaller. This is done on purpose to allow the wheels to still spin if the car is pushed along. Note that these are for the rear wheels only. You will need to print 1 for each wheel. I have a separate model for the front wheels. I am posting them separate as people may have a use for these bearings/spacers outside of OpenRC. The front wheel bearings can be found here: https://www.printables.com/model/244906-bearing-8x12x3-openrc-f1-front-wheel