QD Chuck for Mini Lathe

[VCParticipant @vc44480]

Hi all

This is hardly a question more like an answer to the problem of those pain in the butt 6mm nuts that hold the chucks on the little(yellow) lathes.

The helicoils are not the best of fits but with a little loctite they have lasted for a few years now.

Have not seen this done before

Hope that gets me a noddy badge or free subscription

[VCParticipant @vc44480]

[Bernard Laycock 1Participant @bernardlaycock1]

I may be thick, but I don't understand what you've done. In the photos, I can't see that anything has changed. Could you help with a bit more detail?

Bernard

[blowlampParticipant @blowlamp]

Graham.

I'm glad you can make it out, 'cos I've a list of adverts running straight through the text (yours included).

Martin.

[Gone AwayParticipant @goneaway]

I assume he's replaced the usual stud/nut arrangement on these chucks by drilling through to the front of the chuck, counterboring on that side and using a SHCS from that side.

Presumably the helicoils are used in the spindle flange holes (the picture isn't that clear).

[JasonBModerator @jasonb]

Its likely to be a front mount chuck so no drilling required.

Just tap the flange for the helicoils and fit same

[VCParticipant @vc44480]

Hi All

I did not explain that very well sorry..First prize must go to Mr Graham Meek.

Thats what I did

Thanks Graham

[Sub MandrelParticipant @submandrel]

Alternatively – do the roller bearing modification, and get an extra 5mmm of space behind the mounting flange.

Simples!

Neil

[Bernard Laycock 1Participant @bernardlaycock1]

My machine has been fitted with tapered bearings and fitting the nuts is much easier. Don't the roller bearings make a fantastic difference to the performance.

Bernard

[Sub MandrelParticipant @submandrel]

I'm very happy with the roller bearings, although it seems mine was happier than most with the ball bearings.

Neil

[VCParticipant @vc44480]

Hi glad to hear that there are happy chaps with the roller bearing mod…

Did a timed test to-day 40 seconds 3 jaw off and four jaw on.

Thats what I was going on about

VC

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