Internal Pin To Lock Collet

bradjacob · Jan 5, 2013

Need some help here. I finally got my Bridgeport up and running, but when I went to install a collet, I found that the pin inside the spindle was all but gone. What remains is a rounded-over just high enough for me to feel it. Needless to say, it's not holding the collet, so I can't tighten an end mill into it.

Does anyone know what's involved in getting a new pin in there? Or is there some workaround that people do?

Any info would be greatly appreciated.

L Vanice · Jan 5, 2013

The pin is not needed if yout collet and drawbar threads and your collet O.D. and spindle I.D. are OK. My Rockwell mill was built without a pin and has worked fine since I bought it new in 1974.

This question has been discussed a number of times here.

Larry

bradjacob · Jan 5, 2013

L Vanice said:
The pin is not needed if yout collet and drawbar threads and your collet O.D. and spindle I.D. are OK. My Rockwell mill was built without a pin and has worked fine since I bought it new in 1974.

This question has been discussed a number of times here.

Larry

Thanks for the info Larry yeah, the threads are all good, but I just like the locator pin (personal pref). I did do a search and found the procedure for replacing or adjusting the screw. I went back down and in 5 minutes was back in business. *wipes forehead* Whew, that was easy!

Thanks again.

dr45 · Jan 5, 2013

Hey Brad, I'm still in Texas, but give Ken a call. He has the knowledge and might have one in stock from the machines we just did.
They are a little salty in price, I think something like $20 bucks for that little screw.
Dean

bradjacob · Jan 5, 2013

dr45 said:
Hey Brad, I'm still in Texas, but give Ken a call. He has the knowledge and might have one in stock from the machines we just did.
They are a little salty in price, I think something like $20 bucks for that little screw.
Dean

All fixed already Dean, thanks!

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