21-06-17, 11:57 AM
How good a welder are you? Or do you know a good welder?
Reason I ask is forget the sleeve and do this:
Turn end of shaft to remove all existing old thread and then further machine it about 4mm in diameter smaller.
Build the shaft back up with weld to above the original thread outside diameter, done properly the weld will fuse into the existing metal.
Then turn the shaft to the correct outside diameter for the thread then recut a new thread. Then the correct nut will fit no problem.
I have cut threads at work using this method as it is a lot cheaper then having to buy new machine parts and it works!
Reason I ask is forget the sleeve and do this:
Turn end of shaft to remove all existing old thread and then further machine it about 4mm in diameter smaller.
Build the shaft back up with weld to above the original thread outside diameter, done properly the weld will fuse into the existing metal.
Then turn the shaft to the correct outside diameter for the thread then recut a new thread. Then the correct nut will fit no problem.
I have cut threads at work using this method as it is a lot cheaper then having to buy new machine parts and it works!