A Revolution in Seals Keeps Today's Cars and Trucks Lean, Mean and
Freudenberg-NOK's Low Emission Sealing Solutions address fuel consumption,
weight, start-stop and direct fuel injection challenges
PLYMOUTH, Mich., Jan. 14, 2014
PLYMOUTH, Mich., Jan. 14, 2014 /PRNewswire/ --Amid the dazzling designs and
impressive powertrains being unveiled at this year's 2014 North American
International Auto Show (NAIAS) in Detroit are some often invisible but always
essential sealing components that keep today's new vehicles on the road and
more fuel efficient than ever before.
Freudenberg-NOK Sealing Technologies' Low Emission Sealing Solution (LESS)
products are being used in a variety of new vehicles to address industry
challenges such as better fuel economy, start-stop capabilities, direct fuel
injection, use of lighter materials and more robust components that stand up
to extended warranty requirements. In fact, Freudenberg-NOK products can be
found in virtually every vehicle on the road today.
Freudenberg-NOK seals are being used by virtually every auto manufacturer.
They are helping to power new vehicles that General Motors, Honda, Chrysler
and BMW, among other manufacturers, are introducing at the Detroit show this
"The company's 'Often Invisible, Always Essential' brand campaign captures the
essence of Freudenberg-NOK's LESS product portfolio, especially in an industry
where demands for better fuel economy, lower emissions, and friction reduction
continue to grow unabated," said Torsten Maschke, president, Automotive Sales
"We have launched our LESS initiative to address prevalent industry trends,"
Maschke pointed out. "For starters, there are products like dynamic seals that
we can use to directly reduce friction. And we have much more to offer –
products that are making emission reductions and better fuel economy possible
in the first place. Whether we are talking about radical new products or
traditional applications, we are creating added value for our customers in
Freudenberg-NOK's LESS products offer tremendous potential in addressing
today's key industry challenges. For example:
oThe company's gas-lubricated mechanical face seal, Levitex™, under
development and due for introduction in 2017, is nearly friction-free. A
cushion of air is created between the slide ring and a counter ring,
leading to a 90 percent reduction in friction compared to a conventional
crankshaft seal. This cuts CO[2 ]emissions during driving between 0.5 g
and 1.0 g of CO[2 ]per kilometer. A 1.0 g reduction in CO emissions is
the equivalent of approximately 0.2 mpg savings in gas for a vehicle rated
at a 33 mpg. The seal also facilitates longer operation by reducing wear.
oThe company's Energy Saving Seal (ESS™), for engine crankshafts and
camshafts, combines the robust sealing interface of a conventional
polytetrafluoroethylene (PTFE) collar with the friction-reducing
properties of an elastomer seal. Friction is reduced by 40 percent
compared with a conventional PTFE lip.
oThe CASCO™ cassette-type seal up to 70 percent greater energy savings
compared with conventional lip designs used in other transmission,
driveline and diesel engine segment seals. The CASCO cassette-type seal
generates a much lower friction due to the advanced design of its "axial"
sealing lip. CASCO seals performed and successfully passed several bench
tests reaching over 1 million miles. Customer field tests confirmed this
oThe company can offer a multi-pole encoder that can be combined with a
radial shaft seal, creating one component. The elastomer layer, which can
be magnetized and encoded with north and south poles, provides the control
module with precise information on the rotational speed and the position
of the shaft – an important criterion for start-stop systems. This makes
it possible to minimize installation space, weight and process costs.
The company is also working on many innovations in the area of lightweight
construction. For example, hydraulic accumulators are saving energy and weight
in transmissions. Automatic start-stop systems require high volume flow for
short periods. A hydraulic accumulator with a lightweight design covers peak
pressure in the short term. This means the hydraulic system can be designed
solely for average energy needs, and the transmission can be made smaller and
Freudenberg has been able to build its expertise in the area of lightweight
construction through its joint venture with the Schneegans Group. This
partnership has allowed the company to leverage Schneegans' expertise in two-
or multi-component injection molding. Examples of this technology include the
3D-form full-plastic tubes for oil dip sticks and oil filler necks. These
components allow the tight space in the engine compartment to be optimally
used. In the case of 2K plastic pump housings, seals can be injected directly
for oil and water circuits for added functional security. The same is true for
housings with seals integrated into their covers with a 2K design; they absorb
dynamic stresses and can provide tolerance compensation even during
significant temperature swings.
Freudenberg-NOK is also making a contribution to innovative solutions in
electric mobility via its radial shaft seal or Simmerring^® seal technology.
The input shaft in an electrically powered vehicle's axle drive can become
electrically charged, potentially damaging the transmission. A Simmerring with
an electrically conductive PTFE-graphite nonwoven material grounds the
electrical charge from the shaft to the housing, effectively eliminating the
threat of damage.
The automotive industry is a key business field for Freudenberg Sealing
Technologies, accounting for nearly 50 percent of revenue, with total revenue
at 1.7 billion euros worldwide. The replacement parts business is also
important for the company. The company is responding geographically to the
auto industry's shift from mature to new growth regions. For many years,
Freudenberg's partnership with NOK Corp. has given it a strong position in
China and Asia. The company is currently strengthening its presence in Brazil
About Freudenberg-NOK Sealing Technologies
Freudenberg-NOK Sealing Technologies is the Americas joint venture between
Freudenberg and Co. in Germany and NOK Corp. in Japan. Freudenberg-NOK is a
leading producer – through its Automotive, Merkel, Process Seals and Simrit
sales channels – of advanced sealing technologies for a variety of markets
including: aerospace; agriculture; appliance; automotive; construction;
diesel engine; energy; food and beverage; heavy industry; and pharmaceutical.
Founded in 1989 under the legal name Freudenberg-NOK General Partnership,
Freudenberg-NOK is headquartered in Plymouth, Mich. and operates more than 20
facilities across the Americas. For additional information, please visit
SOURCE Freudenberg-NOK Sealing Technologies
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