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INTRODUCTION
For Machines Mfg. Since 7/09 Model SB1016/SB1036
-3-
INTRODUCTION
About These Machines
Foreword
"The screw cutting engine lathe is the oldest and
most important of machine tools and from it all
other machine tools have been developed. It was
the lathe that made possible the building of the
steamboat, the locomotive, the electric motor, the
automobile and all kinds of machinery used in
industry. Without the lathe our great industrial
progress of the last century would have been
impossible." —How To Run a Lathe, 15th
Edition, South Bend Lathe.
The lathes represented in this manual are a
modern day version of the screw cutting lathes
that trace their roots back to the 1700's, which
were themselves technological improvements of
the bow lathe that can be traced back thousands
of years to the ancient Egyptians.
Now, almost 300 years later, these modern
"screw cutting" lathes are not just a piece of
refined machinery, but a culmination of human
ingenuity and knowledge embodied into the
design and synergy of thousands of interworking
parts—some of which represent the life's work
and dreams of many inventors, mechanical
engineers, and world-class machinists—including
the likes of Leonardo da Vinci, Henry Maudsley,
and the founders of South Bend Lathe, John and
Miles O'Brien.
And now the torch is passed to you—to take
the oldest and most important type of machine
tool—and carry on the tradition. As the operator
of a South Bend Lathe, you now join the ranks
of some very famous and important customers,
such as Henry Ford, who used the machines he
purchased to help him change the world.
Features
As the name implies, these lathes feature EVS
(Electronic Variable Speed) spindle control,
which allows the operator to quickly adjust
the spindle speed. First, within the 18–1800
RPM range, one of four headstock gear ranges
is selected using the spindle speed range
lever. Next, the EVS dial is used to dial in any
available speed within that range. Lastly, a
digital tachometer displays the current spindle
speed.
The beds of these lathes are constructed with
Meehanite castings that have been precision
hardened and ground in the traditional 3-V
prismatic design—long used on South Bend
Lathes for its accuracy, durability, and rigidity.
The headstock features quick-change gear levers
and an adjustable clutch mechanism for the feed
rod that can be set to prevent damage in the
event of a carriage or cross feed bind from too
deep of a cut.
To further ensure a high degree of accuracy,
these lathes are equipped with high-grade
spindle bearings. The spindles are the D1-8
camlock type with an MT#7 taper and 3.125"
bore. The tailstock quills have an MT#5 taper
and offer 6.5" of travel.
Compared to conventional splash and spray oil
systems that can leave upper bearings and gears
starved for oil on initial start up and during
low speed operations, the EVS lathes have a
pressurized headstock oiling system. All bearings
and gears are pre-lubricated before the spindle
starts, so lubrication during high-load low-speed
operations is guaranteed.
Finally, these EVS toolroom lathes are packed
with a premium Yaskawa Inverter unit, Allen-
Bradley contactors, thermal relays, and fuse
system. A complete cutting fluid system is
included with an easy-to-clean chip drawer,
Way lubrication system, ball bearing steady rest
and brass-tipped follow rest, adjustable work
lamp, foot brake, and powered X and Y feed
capabilities.
Capabilities
These EVS Toolroom Lathes are built for daily
use in a busy industrial setting. Loaded with
many nice features and high-precision parts,
these lathes excel at making fine tools, dies,
thread gauges, jigs, and precision test gauges—
however, they are by no means delicate. Thick
castings, heavy weight, and quality construction
throughout provide the necessary brawn for
demanding production and manufacturing tasks.