Wittenstein Alpha
GALAXIE® DRIVE SYSTEM
FUNDAMENTALLY NEW OVERALL CONCEPT
Technology pioneers at WITTENSTEIN have subjected drive
concepts to a fundamental reassessment. The outcome
is a brand new gearhead generation which is fused with an
innovative high speed motor and optional Industry 4.0
connectivity.
The revolutionary Galaxie® Drive System
reaches performance levels which, up to now, seemed
utterly impossible.
From line to surface contact
The innovative core of the new Galaxie® Drive System is the
almost full surface contact during power transmission. This
gives a tooth contact surface which is six-and-a-half times
larger compared to conventional involute teeth with typical
linear contact. The kinematics are fundamentally new: the
gearhead is the only one of its kind in the world to guide a
large number of individual teeth along an internal ring gear.
The tooth geometry corresponds to a logarithmic spiral
which allows power to be transmitted by the multiple teeth
in surface contact.
Next Technology Drive
The Galaxie® Drive System leads to a combination of
specifications that were hitherto unattainable: the gearhead
boasts zero backlash – even at the zero crossing – while
retaining full stiffness. Since the teeth follow a logarithmic
spiral, optimal synchronization accuracy is ensured. The
system’s performance features are all significantly better
than those of traditional hollow-shaft drives with the same
outer diameter.
NEW OPPORTUNITIES FOR HIGH PERFORMANCE ENGINEERING
Several WITTENSTEIN customers have been using the
Galaxie® Drive System since 2012. They have all reported a
dramatic increase in productivity thanks to its outstanding
characteristics:
The system significantly extends the life of machine tools
because it unites permanent freedom from backlash with
extreme stiffness and precision.
Higher cutting speeds and feed rates are possible as a
result. There is also a clear improvement in manufacturing
quality.
The moving cutting heads required for machining are only
half the normal size, and more compact and power dense
machines are no longer a problem.
The new Galaxie® Drive System excites considerable enthusiasm
among the developers and engineers responsible
for the A, B and C axes of precision machines or for wafer
handling axes; it is ideal whenever precise rotational
movements
and very high forces are essential but space
is limited.
A NEW DIMENSION IN POWER
Up to 91% efficiency has been measured for the Galaxie®
Drive System – far better than for any comparable system.
Efficiency*:
+18 to +29%
The high overload capability is the outcome of the Galaxie®
Drive System’s kinematics, with many individual teeth in
contact and an area six-and-a-half times as large for transmitting
the torques.
Emergency stop torque*:
+150 to +300%
Almost all of the Galaxie® Drive System’s teeth participate
in the torque transmission process, contributing to the
stiffness. Enormous torsional rigidity results.
Torsional rigidity*:
+340 to +580%
Any other type of gearhead would have to be built two, if
not three, sizes bigger to get the same torques as with the
Galaxie® Drive System.
Maximum torque*:
+70 to +170%
The Galaxie® Drive System sets a new benchmark for
extreme
compactness and very high dynamic precision
with alternating loads. It creates totally new productivity
opportunities for high performance engineering. It is now
up to engineers and designers to make real developmental
leaps.
Hollow shaft / outer diameter*:
+3 to +70%
The design principle on which the Galaxie® Drive System is
based allows a very large hollow shaft diameter in relation to
the outer diameter.
Zero backlash
The Galaxie® Drive System can even be realized with
zero backlash by selecting the parts accordingly
Ready for Industry 4.0
Optional sensors enable the Galaxie® Drive System to be
designed with Industry 4.0 connectivity
E-mail: Hi-Tech@medital.co.il
Company Tel: 073-2000280
Avihai Ben Naim
Mobile: 054-6707555
E-mail: avihai@medital.co.il
Direct Tel: 073-2000227
Ronen Sagi
Mobile: 054-6319985
E-mail: ronen@medital.co.il
Direct Tel: 073-2000231
Din Kosberg
Mobile: 054-3826374
E-mail: din@medital.co.il
Direct Tel: 073-2000245