Slitting Saw Arbor..Precision..Near flush cut

[C-Bag]

Hmm, never noticed any slip, but I've never marked so I could observe slip. Another of those noob assumptions I guess.

[jjr2001]

Hi guys and thanks for all the comments. I did not use a key based on one build where
the builder stated that the clamping action of the hub was good enough to prevent slipping.
I am conservative in my feed speed and have never had any slippage that I knew of.

In my build I have a 3/8-16 cap screw holding a very beefy hub to the arbor and with the
slip fit, (quite tight actually) it is centered so much better than the import that all of the
teeth get their chance to cut.

So far I do not see a need for a key.

I think the motor on my mini mill would "slip" a few steps before the saw blade would slip.

Cheers, JR

[wizard69]

Hmm, never noticed any slip, but I've never marked so I could observe slip. Another of those noob assumptions I guess.

I'm with mklotz on this one, with manual machining you are likely better off without a key. If the blade binds you want to stop as quickly as possible, but even doing so the blade can still shatter before you hit the stop button. Even so the cutting action of the blade often tightens the clamping mechanism so tight it really doesn't matter if there is a key or not.