Diesel Progress North American

company said, because the electric
motors used are more compact and
offer greater power density than com-
parable hydraulic motors. Fairfield was
also able to design the E07H with
nested input and secondary planetary
stages to reduce the axial length. The
reduction in axial length allows the drive
to be applied on steerable wheels with-
out interference issues. This enables
the E07H to be applied on four-wheel
drive machines that have previously
been almost exclusively the province
of hydraulic wheel drive technology.
The maximum output torque rating
for the E07H is 5163 lb.ft., and gear
reduction ratios of 90: 1 or 160: 1 are
available. A range of motors (includ-
ing dc) and brake options can be
specified to allow maximum applica-
tion flexibility, the company said.
Fairfield’s integrated electric drives
are engineered to be easily incorpo-
rated into hybrid-electric systems to
offer a durable, reliable alternative to
traditional hydraulically driven designs,
which the company noted often require
high power from the internal combus-
tion engine, thus resulting in increased
fuel consumption and higher emis-
sions. As machinery such as telehan-
dlers and rough-terrain lifts frequently
work in less than ideal conditions, the
E07H drive includes motor options
with IP67 ratings that inhibit contami-
nant ingress and prevent water intru-
sion at depths up to 3. 28 ft.

The new electric drives are manufactured at the company’s Lafayette facilities, which is in the midst of a $53.1 million capital investment over the next three years. Fairfield, along with Italy’s Graziano Transmissioni, is part of Oerlikon Drive Systems, which incorporates production and sales facilities in the U.S., China, India, Italy, Russia and U.K. dp

At the upcoming ConExpo-Con/Agg 2011, Oerlikon Fairfield will expand its range of electric drive systems by introducing the new E07H Torque Hub. The new drive, which has a maximum output torque of 5163 lb.ft. and gear reduction ratios of 90: 1 or 160: 1, expands the capability of the company’s electric drive range into larger machine applications such as rough terrain boom lifts, large scissor lifts, telehandlers and large forklifts.

ELECTRIC DRIVE
RANGE EXPANDING
Oerlikon Fairfield to launch newest electrically driven
Torque-Hub planetary drives at ConExpo

With equipment manufactur- ers looking for more ways to reduce engine emissions and fuel consumption, one of the concepts that has gotten more attention — and in some markets more traction — has been electrification. This has embraced everything from full-blown hybrid-electric drive systems to the conversion of mechanically or hydraulically driven machine functions toward electric actuation.

One company that worked to capitalize on this trend has been Oerlikon Fairfield, the Lafayette, Ind.-based manufacturer of standard and custom gear systems for wheel, shaft and spindle drive applications in mobile equipment. For a number of years, the company has been producing gearboxes for electrically driven scissor lifts, but more recently Oerlikon Fairfield has expanded its electric drive range.

Late last spring, the company un-
veiled its E01H electrically driven
Torque Hub planetary gear drives
that offer a maximum output torque of
737 lb.ft., targeting propulsion appli-
cations in material handling, turf and
lawn/garden machinery and specialty
purpose industrial vehicles.