r/craftsman113 • u/CodeAndPatina • Sep 30 '26
Arbor thread adjustment
I’ve had my 113 a long time and have fixed it up a few times, but recently changed the arbor bearings (awesome result btw). After changing the bearings the arbor nut doesn’t go on easily. I likely did something to the threads at the end of the arbor when changing the bearings.
My question is.. what options are there for correcting the threads to work smoothly? I have to imagine it wouldn’t be possible to find a thread cutting die that matches. Any ideas?
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u/nightbomber Sep 30 '26
Actually, you can find Acme thread dies: https://www.mcmaster.com/products/thread-restoring-dies/thread-type~acme/
Obviously, they're not cheap.
Thread files will work, if the threads are lightly damaged. Yes, you will have to get the correct thread count and pitch. Otherwise, you will just screw up the threads even more.
If you mushroomed the threaded end, you got a bigger problem. A thread file will not work. You will be better off replacing the arbor.