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simat 101 backgear

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Brian T27/10/2012 16:41:56
4 forum posts

Can anyone tell me how to make the backgear on this lathe do more then lock the spindle up and what is the thread on the spindle the one that holds the chuck on?

Thanks for your help

Brian T

Gra19/12/2012 09:45:11
3 forum posts

Hi Brian,

If you look at one of the centre pulleys on the headstock, there is a small grub screw, loosen this with an allen key and then engage the backgear by bringing the lever and gears forward towards you. This will give you a 4:1 reduction ratio on any speed depending on the pulleys used. Remember to tighten the grub screw back up though when you have finished using the back gear!

Hope this helps.

Regards,

Gra

Jim Guthrie19/12/2012 10:51:07
102 forum posts
5 photos
Posted by Gra on 19/12/2012 09:45:11:

Hi Brian,

If you look at one of the centre pulleys on the headstock, there is a small grub screw, loosen this with an allen key and then engage the backgear by bringing the lever and gears forward towards you. This will give you a 4:1 reduction ratio on any speed depending on the pulleys used. Remember to tighten the grub screw back up though when you have finished using the back gear!

And don't forget a spot of oil on the pulley/spindle interface to avoid problems, especially if you are going to do a lot of backgear work.

Jim.

David Bryant19/12/2012 11:53:41
1 forum posts

Hi Brian,

the spindle nose thread on mine is M14x1.5, but my one may not be an original spindle.

When using backgear, I completely remove the grub screw, place a few drips of oil down the hole, then use the grub screw to block up the hole again and keep the oil in (but don't do it up tight as that will lock the pulley to the shaft).

David

Mark P.22/11/2015 14:44:47
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621 forum posts
8 photos
Can any Simat 101 or flexispeed owners point me in the direction of a tailstock drill chuck arbour please.
Mark P.
James Alford22/11/2015 15:05:37
435 forum posts
77 photos

Brian,

My Flexispeed Meteor II has a 1/2" BSF spindle thread. I cannot help with the tailstock drill chuck arbour, though. The shortened 0 morse fittings seem to be like gold dust.

Regards,

JAmes.

David Clark 122/11/2015 16:30:07
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3357 forum posts
112 photos
10 articles

Tailstock chuck arbor from EBay. 0 morse taper but will probably need shorting. Might need to undercut the arbor thread to screw drill chuck fully on. Cowells do a replacement headstock mandrel for their lathe (M14 X 1) but I am not sure how compatable it is with a Simat.

Edited By David Clark 1 on 22/11/2015 16:30:43

Mark P.22/11/2015 17:55:05
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621 forum posts
8 photos
David, I had a look at Cowells website and scared myself at their prices. I think that I will bite the bullet and turn up my own.
Thanks. Mark P.
john carruthers22/11/2015 18:19:29
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611 forum posts
180 photos

I have a scan of the Flexispeed Meteor II (aka Simat 101) handbook if you'd like a copy?

I've uploaded the images to my album, Flexispeed Meteor II,
Page 3 covers the back gear etc.
 

 

Edited By john carruthers on 22/11/2015 18:27:32

Mark P.22/11/2015 18:29:11
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621 forum posts
8 photos
Ooo, yes please John that would be very good of you.
Mark P.
Roderick Jenkins23/11/2015 04:20:13
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2123 forum posts
582 photos
Posted by David Clark 1 on 22/11/2015 16:30:07:

Tailstock chuck arbor from EBay. 0 morse taper but will probably need shorting. Might need to undercut the arbor thread...

Sadly, these lathes use the small end of the 0MT, so the arbor thread is the bit you throw away sad

Rod

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