Maintenance-Free Bearings from Federal-Mogul Support One of the World's Longest Suspension Bridges
(Thomson Reuters ONE) -
Federal-Mogul produces more than 100 bearings for the Hardanger Fjord Bridge in
Norway using its DEVA(®) bearing technology
Stadtallendorf, Germany, February 8, 2013 ... Federal-Mogul Corporation (FDML:
NASDAQ) has developed maintenance-free bearings for one of the world's longest
suspension bridges. Upon completion later this year, the Hardanger Fjord Bridge
in southwest Norway will be one of the largest in the world, spanning 1,310
meters (4,297ft) between pylons. A total of 128 spherical plain bearings using
Federal-Mogul's DEVA(®) self-lubricating material technology will accommodate
the small but essential movements that occur between the bridge and its
supporting cables.
"Wind pressure, load and vibrations from traffic flow and temperature changes
are all contributors to road movement on suspension bridges," explained August
Stadlmayr, managing director of Federal-Mogul DEVA GmbH. "The Hardanger Fjord
bridge was particularly challenging because of its length and the loads
generated, so we are pleased to have developed such a low-maintenance, yet
highly effective solution."
Conventional roller bearings were not well-suited for the prolonged, minute
movements of the bridge while under constant heavy load and could potentially
suffer from surface failures called 'brinelling.' Federal-Mogul's thin-walled,
self-lubricating sliding material, deva.bm(®), addresses this issue by providing
a larger load-carrying surface, providing sufficient durability for the life of
the bridge without repair or replacement.
The design of each bearing installation ensures that even if the sliding layer
became damaged by exposure to loads in excess of the design values, the
structure of the joint is protected and the plain bearing would function at a
reduced level.
The complete bridge includes 120 spherical plain bearings with a shaft diameter
of 160 mm and eight with a shaft diameter of 300 mm, used for the main retaining
cables adjacent to the two bridge towers. The bearing solutions for these
exceptionally challenging requirements was developed by Federal-Mogul DEVA GmbH,
based in Stadtallendorf, Germany, where engineers used a combination of
materials from DEVA's standard, well-proven product range. The joint balls are
made from stainless steel, which is pressed into a plain bearing made from
deva.bm. A low-friction sliding bearing consists of a backing comprised of
steel, stainless steel or bronze, with a deva.metal(®) surface layer. This
surface layer is a bronze material manufactured using powder metallurgy - it is
not porous and oil-impregnated, but rather highly compressed and coated with a
layer of solid lubricant material, such as graphite or PTFE.
The bearing housing forms a two-part spherical ring, also lined with deva.bm, to
provide an extended, maintenance-free service life, high static and dynamic load
capacity, and low friction properties resulting from layers of homogeneous solid
lubricants.
The design is completed using thrust washers that are also made from deva.metal,
which absorb axial forces. The bearings are ideal for dry running at slow
sliding speeds with very high resistance and are well-suited for extreme
temperatures and corrosion.
This is not the first time that DEVA plain bearings have provided reliable, low-
maintenance solutions for bridge construction projects. A number of bridges
around the world benefit from this Federal-Mogul technology, including the flap
bridge in the port of Valencia, Spain over which the Formula 1 race circuit
passes; the bridge over the Peene near Anklam, Germany; and the Rethe Bridge in
Hamburg, Germany.
Some key facts about the Hardanger Fjord Bridge:
* 1,310m (4,297ft): span between pylons
* 55 m(180ft): height of highway above sea level
* 200m(656ft): height of bridge
###
About Federal-Mogul
Federal-Mogul Corporation (NASDAQ: FDML) is a leading global supplier of
products and services to the world's manufacturers and servicers of vehicles and
equipment in the automotive, light, medium and heavy-duty commercial, marine,
rail, aerospace, power generation and industrial markets. The company's products
and services enable improved fuel economy, reduced emissions and enhanced
vehicle safety.
Federal-Mogul operates two independent business segments, each with a chief
executive officer reporting to Federal-Mogul's Board of Directors. Federal-
Mogul's Powertrain Segment designs and manufactures original equipment
powertrain components and systems protection products for automotive, heavy-
duty, industrial and transport applications. Federal-Mogul's Vehicle Component
Solutions Segment sells and distributes a broad portfolio of products through
more than 20 of the world's most recognized brands in the global vehicle
aftermarket, while also serving original equipment vehicle manufacturers with
products including braking, chassis, wipers and other vehicle components. The
company's aftermarket brands include ANCO(®) wiper blades; Champion(®) spark
plugs, wipers and filters; AE(®), Fel-Pro(®), FP Diesel(®) Goetze(®), Glyco(®),
Nüral(®), Payen(®) and Sealed Power(®) engine products; MOOG(®) steering and
suspension parts; and Ferodo(®) and Wagner(®) brake products.
Federal-Mogul was founded in Detroit in 1899. The company employs 45,000 people
in 34 countries, and its worldwide headquarters is in Southfield, Michigan,
United States. For more information, please visit www.federalmogul.com.
Press Contact:
Ursula Hellstern |
Federal-Mogul Corporate Communications EMEA |
+49 (611) 201 9190 |
ursula.hellstern(at)federalmogul.com |
|
Bridge Bearing Detail:
http://hugin.info/151797/R/1676591/546498.jpg
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Source: Federal-Mogul Corporation via Thomson Reuters ONE
[HUG#1676591]
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Datum: 08.02.2013 - 14:00 Uhr
Sprache: Deutsch
News-ID 227737
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contact information:
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