Help! > Mistakes, muckups, and dangerous behaviour
Boring hole with a keyway
Roger B:
I have some rescued imperial bevel gears I want to use for a differential. They are currently 3/8" bore and I want to open them out to 10mm. One has a 3mm keyway cut in it. Will I get away with boring to 9.8mm and then reaming or should I put something in the keyway to stop the reamer being deflected?
Jasonb:
I'd just pop it in the lathe and bore to size.
b.lindsey:
Agree with Jason here. Lights cuts also as you near the final desired bore as well.
Bill
Vixen:
Just don't spoil the bored hole by trying a straight flute reamer. It will pick up on the keyway and produce a washboard finish. A fast spiral reamer or three /four flute end mill may work better.
Mike
Ramon Wilson:
I'm with Jason and Bill here Roger definitely bore them :ThumbsUp:
As Mike says you could make a real mess of the bore if you ream it (and, in all probability the reamer too :o)
Tug
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