M24 x 2 arbour

This topic has 10 replies, 6 voices, and was last updated 28 November 2019 at 09:15 by Hopper.

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27 November 2019 at 21:52 #26978
carl carley
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@carlcarley97387
can you get one with a MT2?
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27 November 2019 at 21:52 #439124
carl carley
Participant
@carlcarley97387
ive a large boring head that has an m24 x 2mm arbour thread, can you get this on a MT2 arbour or is it just to small for such a large thread or does m24 x 2 have a 'name'

regards

carl
27 November 2019 at 22:00 #439125
Emgee
Participant
@emgee
Carl

Get yourself a blank end MT2 arbor and thread it in the lathe.

Emgee
27 November 2019 at 22:09 #439128
carl carley
Participant
@carlcarley97387
I did think about that but my spindle is mt4 and a reducer would not be so accurate
27 November 2019 at 22:41 #439135
Emgee
Participant
@emgee
Carl, find an old used MT4 drill, 1" or bigger, cut it down and use that for the arbor, probably a good idea to thread for a drawbar for security in use.

Emgee
28 November 2019 at 03:06 #439152
Hopper
Participant
@hopper
Posted by carl carley on 27/11/2019 22:09:05:

I did think about that but my spindle is mt4 and a reducer would not be so accurate

Should be accurate enough for this job.

It does not matter even if the boring head does run a tad off true.The cutting tip will gtravel a perfect circle regardless.

Chronos and others sell a MT2 boring head arbor with a 1.5" thread that could be turned down to suit.

Most arbors seem to have an imperial thread. (Don't get it confused with the oft quoted drawbar thread of 10 or 12mm or half inch etc). Are you sure yours is 24mm and not 1" ?
28 November 2019 at 08:38 #439172
DC31k
Participant
@dc31k
Posted by Emgee on 27/11/2019 22:00:28:

Get yourself a blank end MT2 arbor and thread it in the lathe.

All the boring head arbors I have seen are flanged after the thread, to stop the head screwing itself into the spindle. Finding a MT2 blank arbor of big enough diameter to accommodate this may prove challenging.
28 November 2019 at 08:50 #439173
Michael Gilligan
Participant
@michaelgilligan61133
Posted by DC31k on 28/11/2019 08:38:51:

Posted by Emgee on 27/11/2019 22:00:28:

Get yourself a blank end MT2 arbor and thread it in the lathe.

All the boring head arbors I have seen are flanged after the thread, to stop the head screwing itself into the spindle. Finding a MT2 blank arbor of big enough diameter to accommodate this may prove challenging.

.

At the risk of sounding like a scratched record:

Loctite 638 or similar … Loctite 638 or similar … Loctite 638 or similar

MichaelG.
28 November 2019 at 08:57 #439177
carl carley
Participant
@carlcarley97387
i have pondered on softening the arbour it came with and

a) turning a MT2

b) cut off existing taper and drill/tap for a more readily available MT2 arbour

the one from chronos looks promising tho

cheers

carl
28 November 2019 at 09:04 #439180
KWIL
Participant
@kwil
**LINK**

Allendale Group, in stock for M20 but not M24

Edited By KWIL on 28/11/2019 09:07:04
28 November 2019 at 09:15 #439185
Hopper
Participant
@hopper
Depends how hard the original is too. You might be able to turn it down using carbide tooling?

Some of the cheapies may not even be hardened at all.
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