I am using a (new, not old school) 14N Jacob's Super Chuck on a bridgeport. I feel comfortable with it at the 2000ish rpm that I've been using it, but I'm getting some push back from the nervous nelly looky loos. I figured I would go straight to the Jacob's literature and find the max rpm and settle the issue, but wasn't able to find anything about rpms and that seems ridiculous. I'm assuming that it would be fine to the 3000ish max rpms that the machine can put out, but now I'm wondering why they don't specify a max. Am I correct that whatever minor out of balance the chuck has will cause problems before it is a safety concern? Anybody have a source for a definitive max rpm for a Jacob's brand super chuck?
Thanks
Thanks