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Getting a Grip on Four-Jaw Lathe Chucks

Jaw Design
Large view of chuck
Enlarge Image
 
Dovetail jaws usually leave
minimal or no marking on the finished
vessel, reducing the need to remount
it to remove any marks.
Smaller view of chuck
Enlarge Image
 
Serrated jaws have great holding
power, particularly when gripping
end-grain stock, but leave marks
that must be removed.

Jaw Design

There are two basic jaw designs, dovetail and serrated, as shown right. Most jaws for Vicmarc and Axminster chucks are of the dovetail design. The flanged SuperNova jaws are a variation of this design. Serrated jaws are most common on Oneway chucks.


Continued on page 4:  How a chuck grips

 



Comments (7)
10540284258
jglenn17515 wrote:

I just discovered the jaws on my 4 jaw chuck are not centered. How do I adjust the jaws so they close simultaniously and are centered?

1/28/2016 03:03:55 PM Report Abuse
brcollectibles wrote:

I think that oneway in Canada made the ist of these. I never did much turning till I got the oneway chuck. There is only so much you can do between centers.

1/28/2016 10:25:52 AM Report Abuse
nelsondefelixy wrote:

I have just bought a 3" 4-jaw chuck, thanks for this article a guide for a beginner like me, by the way i let a machinest make an adapter to fit on the spindle of my lathe, Nelson Defelix-Iloilo City, Philippines,12-3-15, 8:30pm

12/3/2015 06:31:02 AM Report Abuse
rwm50 wrote:

myplace i have the same unit, you need a 1" + 10 tpi thread type chuck

4/3/2013 05:31:05 PM Report Abuse
Stackman wrote:

I have a 4 Jaw chuck ordered at Busy Bee Tools for my Craftsman lathe. 3/4 X 16 TPI tread pattern.

11/27/2011 10:09:28 AM Report Abuse
mcplace wrote:

I need a 4jaw chuck for a Sears Craftsman wood lathe model# 351.217150 where can I find one. Sears says this model is obsolete any brand might as lon as the thread pattern match.Can some one help

4/23/2011 12:50:03 PM Report Abuse
helmich1 wrote:

Very informative! Metalworking 4 jaw chucks work differently, but that is another ballgame.

3/24/2011 10:38:22 AM Report Abuse

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