Big Wheel Design
We did some design and testing. We modeled the
AM-0420 8" Wheel with an automotive "cogged V-belt", model #
AX-23. The idea is that the belt will be flipped inside out and snugly fit the wheel OD. We're thinking well cement the 2 rubber surfaces together.
The auto parts store didn't have this small a fan belt, but I got a longer one with the same cog pattern and cross-section. We mocked up the 50 deg angle with a churro at the correct alignment, rigged the belt around an 8" wheel and rolled the wheel per design by hand. It felt like it should work; worked well enough that we ordered 4 wheels and 4 belts.
