Engineers: does this collet chuck look right to you ?

[skybadger]

I have purchased two collet chucks recently and both of them have had something unexpected. The nut in the photo is used to tighten down on the collet in the chuck, but looking through the nut from the inside, you can see where the surface the collet will be pushed down by is eccentric to the central aperture. To me this looks like a flaw, the conical tapered  surface on the inside of the central hole should push the collet fingers on to the contents and this is being fouled by the internal flange.

Hopeful you can tell what I am saying from the pictures below.

This is a bit of a close up

and this is from straight on..

Can anyone tell me if this is what yours looks like or am I getting it all wrong ?

Cheers

Mike

[RLWP]

Yes, that's absolutely correct. You 'clip' the collets into the nut before fitting it to the body

Richard

[Bizibilder]

And to "unclip" them you simply push sideways on the base of the collet and it will (if you push in the right place!!) simply drop out of the holder.

[martin_h]

Yep, spot on, I spent 8 years of my life making the things!!

[lennylovit]

yes my er32 and er25  (r8) are all the same twist as you put them in

Lenny

[skybadger]

ok.thanks all. I learnt something there...

Mike

[RLWP]

ok.thanks all. I learnt something there...

Mike

Guess how I found out...

Richard