Universal Joint - Key

grabcad

To fabricate a key for a universal joint assembly, you'll first need the correct specifications for the key and the shaft it connects. Measure the diameter of the shaft, as well as the depth and width of the key slot. Using this information, cut the key to size on a lathe or milling machine, ensuring that the taper is correct. Finally, file and polish the key to ensure a smooth fit in the joint assembly.