Skateboard Wheels come in different sizes, hardness, colors, and graphical designs.

How to make wheels:

It starts out as a one piece structure with a pin in the center to form a bearing cavity. Then a nozzle dispenses freshly mixed polyurethane liquid  into the wheel molds. The liquid begins to become solid. Next a worker will load the molds into an oven and bakes them at 240 degrees Fahrenheit for 40 minuets. Workers then remove the pins from the molds  and the mold go to the next station. At the next station workers blast compressed air between the wheels and the molds to pry the wheels free and pop them out. Next a worker probes the wheel using  the durometer gauge to insure the urethane has  cured to the right degree of hardness if the whee is sufficiently hard the batch is ready. Then the worked clamps the skate board  wheel in the lathe. The lathe spins the wheel while an automatic cutter contours the edges to make it clean. Then they design the wheel with patterns, colors, and or shapes.

Thank you, Caterina 🙂