Youra
2007-06-09 18:26:43 UTC
Hi all.
The folk on alt.holorogy suggested someone here might be able to shed
some light......
Can anyone help with identifying a (Polish?? - the motor says 'made
in Poland') 'Geneva pattern' watchmakers lathe I've recently
acquired:
Loading Image...
There's space for two nameplates, but they vanished before it got to
me...
I'm also struggling with adjusting the headstock bearings.
Some pictures:
Loading Image...
Loading Image...
Loading Image...
The main issue from my point of view - is there a bit (another
bearing??) missing from the left hand end (farend.jpg shows that bit
unscrewed slightly for clarity).
If there is no part missing, then the plain steel washer (second in
from the left in that picture) which is attached to the spindle rubs
against the end of the threaded bearing retainer (the bronze thread
just visible to the right) - this is a tiny bearing surface, and it
makes me very nervous.
On other lathes (my Lorch for example) this is a proper tapered
(plain) thrust bearing, rather than this tiny thing. For some scale,
the threaded portion of the bronze bearing retainer visible extends
approx 1.1mm out from the nut on the far right.
There is a ball bearing thrust race within the left hand end of the
pulley and adjusting that acts to tighten this very small bearing
surface, making matters worse.....
Any ideas how I might improve matters at that end of the headstock ?
Thanks,
Youra.
The folk on alt.holorogy suggested someone here might be able to shed
some light......
Can anyone help with identifying a (Polish?? - the motor says 'made
in Poland') 'Geneva pattern' watchmakers lathe I've recently
acquired:
Loading Image...
There's space for two nameplates, but they vanished before it got to
me...
I'm also struggling with adjusting the headstock bearings.
Some pictures:
Loading Image...
Loading Image...
Loading Image...
The main issue from my point of view - is there a bit (another
bearing??) missing from the left hand end (farend.jpg shows that bit
unscrewed slightly for clarity).
If there is no part missing, then the plain steel washer (second in
from the left in that picture) which is attached to the spindle rubs
against the end of the threaded bearing retainer (the bronze thread
just visible to the right) - this is a tiny bearing surface, and it
makes me very nervous.
On other lathes (my Lorch for example) this is a proper tapered
(plain) thrust bearing, rather than this tiny thing. For some scale,
the threaded portion of the bronze bearing retainer visible extends
approx 1.1mm out from the nut on the far right.
There is a ball bearing thrust race within the left hand end of the
pulley and adjusting that acts to tighten this very small bearing
surface, making matters worse.....
Any ideas how I might improve matters at that end of the headstock ?
Thanks,
Youra.