I was recently given a rolling mill that is an I Shor model rolling
mill. It looks to be pretty old. Well it is older than me. I was told
it may be 50yrs or older. The mill was free but it has a problem. It
has two teeth broken off one of the gears. I have already contacted I
Shor and they said that they could not help. The unit is Model R-1
Code 1006. It is black with gold pinstripes around the edge. Any
thoughts. Maybe you have one in the corner with a broken gear??
The mill was free but it has a problem. It has two teeth broken off
one of the gears.
If no one has one, you might try a local machining company or there
may be metal casting clubs in your area that do iron, and casting
companies that you could try.
Measure the width of the gear, the diameter of the gear & the shaft
it’s mounted on. Then count the teeth including the 2 missing. Armed
with this info, see if any of the other mills on the market have a
comparable gear. If you can find one with everything the same except
the hole for the shaft, don’t worry. A machine shop may be able to
bore out the hole if it is too small or provide a bushing if the
hole is to large.
One idea if you are not in a rush and can’t find the gear somewhere
is find the local trade school / high school that trains machinists.
Very often they will take this type of job on for basically materials
and tool cost so has to give the students “Real world experience”
Or just bite the bullet and find a local machine shop who may be
able to repair it or will make you one for a price. If you are in a
larger city and unsuccessful finding a shop to do a ‘small’ job like
that, go for a drive into the country in the agricultural areas and
find a small local shop, having to fix odd equipment is part of their
stock in trade.
You can probably pick up a replacement gear from a company called
‘Boston Gear’. (www.bostongear.com) use their site to find a local
distributor, or call your local machine tool supplier to find out who
stocks gears locally.
Unless I-Shor were total freaks (or the mill’s really old), it’s
doubtful they hobbed their own gears. That’s best left to specialists
like Boston. They probably just ordered stock gears from a catalog.
You’ll need the internal and external diameters of the gear, the
width of the face, and number of teeth. (and whether they’re straight
across or slanted.) That should be enough to get you into the
ballpark. This is where a good sales-being at the supplier is
invaluable, however, as a good one can help guide you in to exactly
what you need from there.
One idea if you are not in a rush and can't find the gear
somewhere is find the local trade school / high school that trains
machinists. Very often they will take this type of job on for
basically materials and tool cost so has to give the students "Real
world experience"
Thank you!!! I totally forgot about that. I was in a VoTec school
and we did all sorts of things on the cheap. From hair cuts to
painting your car. I was in drafting and we would do a full set of
house plans for $50.
Let us have the Specs of the gear and we may be able to help. We cut
all our own gears. Even better, send it to our office in Arizona and
we will find the specs out for you.
Matthew Durston
Durston Rolling Mills
Progress House, Hospital Hill
Chesham, Bucks HP5 1PJ
England
If you wonder why I am con singing the praises of Durston, this is
why. How many competitors would help a person in need to make sure
they get their problem solved.
Durston is a proud sponsor and generous donator of a rolling mill
for the Ganoksin Raffle.
I am the proud owner of a Durston rolling mill, which has been in
operation flawlessly for over 10 years.