Have a cracked cannon pinion on the Eingraham T/S The spring broke and bent the pivots on the second wheel and cracked this part. I drilled a hole through the arbor to hold the tension spring back hole .046. Took the knurling down to a slip fit for the gear. Then held the gear on the arbor in a vise and drilled half way into the arbor and installed a pin between 2 teeth. << On one side of the crack. Then did the same thing on the other side of the crack between 2 teeth. Then when both sides were drilled and pinned. Pulled the pin out, that held back the tension spring. No solder, no superglue, or Epoxy.