Sieg C3 chuck size

Sieg C3 chuck size

This topic has 5 replies, 4 voices, and was last updated 8 January 2017 at 20:55 by HOWARDT.

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8 January 2017 at 18:23 #12853
HOWARDT
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@howardt
Chuck update
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8 January 2017 at 18:23 #276580
HOWARDT
Participant
@howardt
I have a Sieg C3 fitted with the standard 80mm chuck. Having used it for nearly twelve months, on 3 1/2 inch loco work and tooling, I now find I need a bigger chuck as I use the external jaws more and more. After looking around on the net I found that some have gone to 5 inch chucks. What is your experience?
8 January 2017 at 18:36 #276584
Neil Wyatt
Moderator
@neilwyatt
I have an (excellent) Zither 4" 3-Jaw from Arc, it's very accurate and I imagine fitting a 5" would be way over the top for a C2/C3.

Neil
8 January 2017 at 18:44 #276586
John Stevenson 1
Participant
@johnstevenson1
The extra strain of a 5" chuck on the bearings would be a step backwards and lead to a reduced surface finish.
8 January 2017 at 19:38 #276606
Michael Gilligan
Participant
@michaelgilligan61133
Consider using a faceplate and 'dogs'

… or a slim 4-Jaw chuck [similar style to the Burnerd 6" lightweight]

MichaelG.
8 January 2017 at 20:55 #276633
HOWARDT
Participant
@howardt
Face plate is alright for a one off but but is a pain for repeats.

If I replace the chuck I would probably go for taper bearings, depends on weight. There is a mod on toolandmods were he fitted a larger spindle on a Bull.
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