New chuck for the little schaublin yesterday

Luke Rickert · Jan 23, 2017

I picked up special 4 jaw chuck yesterday for the 102. It is a Roehm EG series which is a 4 jaw scroll chuck that also has independant jaws if that makes any sense. Bit expensive but should prove to be useful. The design is interesting, basically it looks like a normal scroll chuck with adjustable jaws stacked on top. I had heard of these but never seen one before. It had never been used (still in the box) but had been sitting for long enough to harden all the grease so I had to disassemble, clean and re-grease etc.

L

SIP6A · Jan 23, 2017

Nice piece of tooling, congratulations

.

trevj · Jan 24, 2017

SIP6A said:
Nice piece of tooling, congratulations.

Indeed! We had a Rohm combination 4 jaw for the Schaublin 150 that was in the shop I used to work in.
Pretty darn nice!

Cheers
Trev

Luke Rickert · Jan 24, 2017

Bani and another Swiss company also made them but this seems quite good enough. I like independent 4 jaws as you can get them as accurate as you need and work with other shapes but when it is a single setup etc it is nice to just used the scroll.

Monarchist · Jan 24, 2017

whidbey said:
Bani and another Swiss company also made them but this seems quite good enough. I like independent 4 jaws as you can get them as accurate as you need and work with other shapes but when it is a single setup etc it is nice to just used the scroll.

Handy, yes. Earliest ones were a US patent.

But do NOT forget that (relatively) fragile scroll is inside it, just as on a scroll operated 3-J.

'bout HALF the max grip pressure of reg'lar 4-jaw, and buggerable if you get greedy for grip.

Not that I'd expect a Schaublin trafficer to ever be that ham-handed, but still..

Bill

Luke Rickert · Jan 24, 2017

Thanks for the warning, I think Roehm was thinking about this as they supplied a tiny wrench for the 4 jaw portion which means you really can't apply too much force without a cheater. And yes I try to treat my tools politely

Jersey John · Jan 24, 2017

Nice piece for kit to acquire but as Bill says don't over tighten.

Thanks for sharing

John

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