A customer newsletter from Schaeffler Group Industrial’s Production Machinery Business Unit
CURRENT NEWS
Issue 1/2010
Bearing down on efficiency
Experience and expertise for your competitive edge – Simulation, tests and service for high reliability
Service solutions from F’IS
Service for luxury cruise
liner
Page 3
Bearinx© calculation tool
Expertise for bearings, measuring systems and direct drives
Integrated friction calculation function
Page 4
In principle, it doesn’t take long to buy a
component, but when it comes to selecting
strategic machine elements such as
bearings for demanding production
machinery, it’s a good idea to consider
“hidden benefits”.
From advance development to the last day:
Overall process support for the machine
Professional bearing selection
Consulting the rolling bearing catalog is
Just pick up the phone for application engineering
advice
definitely helpful. However, when it
comes to demanding machine tool
applications or machines in the textile,
printing, food and packaging industries
or in productronics, our
customers will
always be able to
discuss their
specific applications and designs
with an expert
contact partner at
Schaeffler. In
addition, much
more detailed
Answers to specific quesproduct informa- tions can be found at
www.schaeffler.com/
tion such as
Services/Media Library
operating and
(SSD_14_de_en)
diagnosis
instructions will be made available.
Getting in touch with a specialized
Schaeffler engineering expert early on will
Magnetisch
Magnetic versus
versus optisch
Optical
Axial radial
bearing YRT
Axial radial
bearing RTC
Axial radial
lbearing YRTSpeed
Axial radial bearing
with integrated
angular measuring
system SRM
Axial angular contact
ball bearing ZKLDF

high rigidity

maximum accuracy

low friction

higher speeds

high continuous
speeds

maximum tilting
rigidity

very low, uniform
frictional torque

YRT and YRTSpeed
with new integral
angular measuring
system SRM

low friction

very high
continuous speeds

high rigidity

low lubricant
consumption

for mechanically
driven, high
precision rotary
axes

for mechanically
driven, high
precision rotary
axes

for bearing

where angular posi- 
where the speed
supports in direct
tions must be
capacity of YRTSpeed
drive high precision
measured to an
bearings is not
rotary axes
accuracy of a few
sufficient
angular seconds

for low-mainte
nance bearing
supports
Bearing
Characteristics
Shorter distance and
maximum quality for large
machine tool bearings
Page 5
Preferred area of
application
Capacities for large bearings
Such assets are worth hard cash and
come in many different forms, including
design expertise, calculation, simulation
and testing verification, basic research in
materials and lubricants, integrated functions, interface reductions or downsizing
opportunities, to name only the most
important. Each and every one of these
assets owes its efficacy to long-standing
experience: Schaeffler Group Industrial’s
expertise is helping more and more
customers to be successful in the market.
Support bearings play a significant role
in achieving precisely the required
performance, minimum machine
downtime and perfect results, combined
with high machine profitability. So it is of
utmost importance to identify the best
technical and economical support
bearings. Other vital aspects are the
selection of the most suitable bearing
design, followed by fair pricing and
reliable deliveries as well as the proper
installation and startup of the system.
Depending on the specific demands and
the application in question, continuous
monitoring and regular maintenance may
also be required. Schaeffler Group
Industrial’s application engineering,
sales and service specialists are closely
related to these process steps – welltimed, on location, and in person.
Winkel-Mess-Systeme
für Rundtischachsen
im Vergleich
A comparison
of angular measuring
systems
for rotary axes
Continued on Page 2
Issue 1 · 2010 – Page 2
Editorial
Having a bearing on efficiency!
Value-added expertise in machine tools
There is much talk about “efficiency” increases these days, and
usually it’s in the context of “energy” efficiency. That’s actually a
good thing, for profitability increases arising from higher levels
of efficiency and higher awareness of the scarcity of resources
are in demand today more than ever before. But there’s much
more to the “efficiency” of bearings than the energy aspect!
Especially features such as low maintenance requirements, integrated functions,
sturdiness and performance increases offer very high benefits for subsystems such
as spindles or rotary tables, and thus for the entire machine tool. Tapping this
potential requires more than just the ability to manufacture quality bearings. What is
called for in addition to just the component is the expertise to develop, manufacture
and supply within the categories of the respective users, taking into consideration
the specific demands of their applications. Only then will our customers buy a
specific bearing because they appreciate the added value that comes with it. Added
Having a bearing on efficiency!
Continued from Page 1
make it possible to tap tangible bearing
potentials, exploit the full bearing life,
achieve a good cost-benefit ratio and
ensure a high level of satisfaction on the
part of the end user.
Thermal simulation
Sophisticated calculation and simulation
tools
Support bearings are designed using the
in-house state-of-the-art calculation
program Bearinx®, which represents a
dynamic and unbeatable compilation of
decades of application engineering and
calculation experience. From the
calculation of all conceivable performance
parameters of a specific bearing application to the complex thermal simulations
Calculation with Schaeffler’s Bearinx® software
value that enhances their products and helps them to stand out from their competitors: Top performance, long machine uptime, reduced system costs! Milestones on
this road include new friction calculation and bearing monitoring tools, innovative
lubricants, new bearing designs and many more.
In this issue of “added competence” we have the pleasure of introducing you to our
wide range of product and service offerings and demonstrate how we can contribute
to raising the efficiency level of your machine.
We hope you will enjoy reading this newsletter!
Sincerely yours,
Helmut Bode, President, Production Machinery
of direct-drive rotary tables including
predictions concerning temperature
development, heat conduction, convection and heat radiation. This tool offers
everything an engineering specialist
could wish for. Bearinx® is being continuously refined. Key customers of Schaeffler
Group Industrial can be granted the right
to use the software, e.g. the Bearinx®
online spindle calculation or Bearinx®
online linear calculation etc. (For more
information on Bearinx®, please refer to
the article “Find your bearings! Efficient
systems thanks to friction calculation” on
page 4 of this issue). It is one of our basic
principles that the verification of calculation results under harsh reality conditions
does not take place at the customer
location, but rather on Schaeffler’s own
test rigs, in suitable test bays, prior to
delivery. Quite often partnerships with
leading German universities and research
centers are utilized. The results gained,
are directly applied to the development of
products and calculation tools. An
effective range of services (see also
“Schaeffler Group monitors Germany’s
largest luxury liner”, on page 3 of this
issue), which includes all phases from
application engineering, to manufacturing and spare parts procurement, form a
part of our offering.
Validation in testing
Economic development drives innovation
The Schaeffler Group at EMO 2009 in Milan
At the EMO tradeshow held in Milan in
October 2009, the Production Machinery
Business Unit introduced its Italian customers and the international press to the
Schaeffler Group’s latest technical solutions that will significantly impact the
future development of bearing supports
for machine tools.
In keeping with the motto “Innovation &
Trends in the Machine Tool Industry”,
exhibitors focused on topics such as reduced energy consumption, the development of innovative components, and new
products along with new applications for
machines. It became obvious that, contrary to expectations, the overall economic
situation has spurred, rather than
slowed down the development of new
products and groundbreaking solutions.
To corroborate this phenomenon here’s
the comment of a conference participant:
“Italy is marked by companies that are
very active innovators. It is becoming
more and more necessary to keep
customers up-to-date of technological
progress. This should happen in the form
of creative and proactive ideas, coupled
with new products and resources, like
those that the Schaeffler Group has in
store. Usually we ask the customer these
three questions: What potential are we
talking about, where does the customer
Milan Cathedral
buy and at what price? But with an eye on
innovation, we should maybe think about
replacing these questions and ask
instead: How “current” is the customer’s
application and what can the Schaeffler
Group contribute to “improve” it, so that
it becomes more up to date and ready for
the future.”
Issue 1 · 2010 – Page 3
Expertise in linear bearings: Components with “competence”
INA linear bearing solutions in Deckel Maho Gildemeister machines
Change in the machine tool industry is characterized in particular by
the increasing importance of system
partnerships between OEMs and suppliers. Manufacturers are increasingly
focusing on their core competence
and using ready-to-fit machine components and assemblies from highperformance technology partners. All
parties involved are benefitting from
this close cooperation – manufacturers,
component suppliers and end customers alike. The intense collaboration
between GILDEMEISTER and INA Linear
Technology is an exemplary, successful
development partnership in the area of
modern machine tools.
When it comes to linear guidance systems to be used in its large and mega
milling centers, DECKEL MAHO Pfronten
GmbH relies exclusively on high-perfor­
mance RUE-E linear recirculating roller
Large universal milling machine DMU 340 P, main
axes X, Y and Z fitted with INA linear roller bearing and
guideway assemblies RUE65-E (X axis) and RUE55-E
which the linear roller bearing and
guideway assemblies are to be installed
with meticulous accuracy, and it
examines them for compatibility with the
linear guides.
Test slide at DECKEL MAHO Pfronten for examining the machine geometry (X axis) and adjusting the
guideways
bearing and guideway assemblies from INA
Linear Technology. The linear guidance
systems for series DMU/DMC 200 to 340
have been developed together with INA.
For performance and quality reasons,
DMG buys these products solely from one
supplier. Depending on the machine size
and the loads acting on the main axes,
linear recirculating roller bearing and
guideway assemblies of sizes RUE 35, 45,
55 and 65-E are used. Furthermore DMG
uses covering strips; double lip wipers
or customized sealing kits from the KIT
modular system to meet customer needs.
These are pre-assembled at the factory.
Load calculations are carried out using
Schaeffler’s Bearinx® program, which
have been complemented by DMG’s own
calculations for further refinement. Optimized lubricant distribution of the RUE-E
generation ensures minimal flowable
grease consumption of only about one
liter per year using machine lubrication
intervals of four hours. Additional
components are not required.
Detailed Solution – Successful system
performance
Due to extremely high axis loads, INA
Linear Technology supplies the customer
exclusively with “selected” combinations
of guideways and recirculating roller
units. Precisely matched pairs are
combined to achieve minimal waviness in
the guideways and maximum accuracy of
the carriages and all key data is recorded
in test documents. The RUE-E units are
supplied fully assembled and well
protected in special returnable containers
to avoid the possibility of damage and
mix-ups. Prior to installation, DECKEL
MAHO inspects the machine parts on
Schaeffler’s product range covers all
bearing supports in the machine tool
It goes without saying that the cooperation between DECKEL MAHO and
Schaeffler Group Industrial is not restricted to components and competences
in the field of linear technology. As a system partner, the Schaeffler Group offers
a comprehensive range of products for
all conceivable bearing positions in machine tools as well as the required drive
technology under its INA, FAG and IDAM
brands. This range contains bearings for
applications such as the feed spindle,
main spindle and all rotary axes systems.
DMG’s large milling center DMU 340 FD in gantry
design sets new standards in 5-axes machining
Schaeffler Group monitors Germany’s largest luxury cruise liner
Service solutions from FAG Industrial Services (F’IS)
“Only the best for the guest” – this
dictum has a ring to it in the tourism sector, and it also applies to the technical
services for luxury liners. The propulsion
and steering drives of the “Celebrity Solstice”, the largest cruise ship ever built in
Germany, utilize state-of-the-art bearing
technology from the Schaeffler Group and
sophisticated monitoring solutions from
FAG Industrial Services (F’IS).
Supplied by ABB Marine, the vessel’s two
Azipod drives must be ready and available
for use at all times. To this end, they have
been equipped with FAG DTECT X1 monitoring systems. Measurements carried out
during the test voyage and endoscopic
measurements prior to commissioning
documented the excellent bearing condition after installation. Ever since the
cruise liner was put to sea for her maiden
voyage at the end of 2008, the FAG DTECT
X1 systems have been continuously moni-
Cruise liner “Celebrity Solstice”, equipped with Schaeffler bearing technology and monitoring solutions
toring the drive bearings. Once a week,
the recorded vibration data are sent to
FAG Industrial Services for analysis. In the
event of abnormalities, the drives manufacturer will receive a detailed report. The
system solution make it possible to plan
imminent repair measures well ahead, so
that the ship’s itinerary can be adhered to
at all times.
Sadly, dear Reader, it is as likely as not
that you will only see this luxury liner from
the outside rather than from within, and
things are no different for us. Even though
we may have to make do with just some
photos: “Being a part of it” is all-important
and having our monitoring system on
board means that if not in body, we are
there in spirit every day!
Azipod drive
FAG DTECT X1 in ABB Marine Azipod drive
Issue 1 · 2010 – Page 4
A partnership for top performance
BIGLIA Group counts on Schaeffler linear guidance and spindle bearing solutions
INA linear bearing units in action
The BIGLIA Group was established back
in the 1950s in Incisa Scapaccino, a
small town located in the famous Italian
wine-growing area of Piemont. The company initially focused on the manufacture
of sawing and special purpose machines.
In the following years, BIGLIA recorded
steady growth, in particular in the lathe
sector. Today it employs 170 staff. Having manufactured over 10,000 machines
since its foundation, the company can be
rightly called one of the protagonists in
the Italian and European lathe manufacturer markets.
At present, BIGLIA offers a comprehensive range of multi-functional lathes and
multi-spindle machines with two or three
automatic turning heads. Available in 25
different versions with between 2 and
12 axes, they are suitable for universal
turning operations and the machining of
complex assemblies in one single setup.
Thanks to the use of power tools, C and
Y axes as well as counter spindles, this
is no problem today. These configurations also include a series of vertical
lathes with inclined spindle, lathes with
three automatic tool changers and multitasking lathes.
BIGLIA lathes and CNC machining centers
offer high rigidity in their mechanical
main components. Quick tool changers,
as well as high-speed and
high-acceleration in the main axes and
spindles, enable outstanding productivity.
Machining accuracies are extremely high,
thanks to the controlled temperatures of
heat sources, the spindles and auto­
mated tool changers. Environmental
conditions and energy saving potentials
have also been taken into consideration,
like the implementation of grease
lubricated guideways. The high quality
standard, in combination with futureoriented manufacturing, technologies
and the consistent testing of the
production process, are the main reason
for the company’s good position in the
market. In keeping with its stringent
quality demands, BIGLIA selected the
Schaeffler Group as its preferred supplier
of ball and roller monorail guidance
systems for machine axis in 2004. So the
vast majority of main axes in their turning
machines are equipped with ball and
roller linear recirculating bearing and
guideway assemblies such as e.g. KUVE
35. The partnership between BIGLIA and
Schaeffler in the linear technology sector
expanded by the active cooperation in
the area of main spindles. Here the
company now uses super precision FAG
spindle and cylindrical roller bearings.
INA KUVE 35
INA KUVE
BIGLIA is firmly convinced that these
strategic machine components fully
comply with its customers’ high quality
expectations. The technical and commercial collaboration with the Schaeffler
Group means that BIGLIA has a reliable
partner that supports the company at
an international level, offering long-term
application engineering advice, first-rate
products and fast deliveries. BIGLIA considers Schaeffler’s regional presence in
Italy to be one of the big strengths of the
Schaeffler Group. This presence ensures
optimum services in particular in the
field of engineering and safeguards the
required technical support in product development directly in situ.
A glance into the BIGLIA production
Energy-efficient systems thanks to friction calculation
Bearinx® – A key to higher efficiency
The Schaeffler Group’s bearing calculation
and simulation program, Bearinx®, now
also offers a new friction calculation
function. This enables users to calculate
the energy efficiency of different bearing
supports in a specific application. With
Bearinx®, the Schaeffler Group can
identify the maximum saving potential
of a system at an early design stage.
This is an important prerequisite for
optimally using friction-optimized
bearings and for further increasing
the energy efficiency of applications by
taking advantage of downsizing options.
Friction calculation with Bearinx®
The new friction calculation method
takes into consideration both rolling
and sliding friction, and both of these
under boundary , mixed and full-film
lubrication. The method is based on the
elastohydrodynamic lubrication theory
(EHL), which deals with the formation of
lubricant films in heavily loaded contact
points of bodies rolling against one
another at high speeds. This includes
both the formation of a hydrodynamic
lubricant film and the elastic deformation of the bodies in contact. Since load,
sliding speed, viscosity, temperature
etc. are not constant over the contact
area, every single contact in the bearing
is analyzed. As a result, all the frictional
forces at the discrete
contact area points
are available.
Currently, friction
calculation with
Bearinx® is available
to customers via the
advisory service
Gearbox calculation with Bearinx®
offered by the Schaeffler Group’s
qualified field service application
engineers and via the application
engineering departments.
Load distribution in
a cylindrical roller
bearing calculated
with Bearinx®
New dates for spindle bearing installation training
On-site installation training for FAG super precision bearings can be
scheduled any time with machine tool and spindle manufacturers,
repair centers and rolling bearing distributors. These courses are also
offered on a regular basis at Schaeffler Technologies GmbH & Co. KG
in Schweinfurt.
The next training courses in spindle
bearing installation will take place in
Schweinfurt on:
Available now: The new F’IS catalog
for mounting tools.
July 8, 2010
September 30, 2010
November 18, 2010
Contact:
FAG Industrial Services GmbH (F’IS),
Tel.: +49 (0) 2407 9149-0
E-Mail: Training@fis-services.de
Order now or download directly at:
www.schaeffler.com
Issue 1 · 2010 – Page 5
Improved capacities for large bearing production
Shorter distances and maximum quality for large machine tool bearings
from these measures in two ways: Firstly,
the relocation of the spindle bearing
production to Schweinfurt relieves the
burden on the Wuppertal production and
secondly, the manufacturing capacities in
Wuppertal have also been considerably
expanded.
Single row FAG super precision cylinder roller
bearing N30
By relocating the production of all
large-size spindle bearings and super
precision cylindrical roller bearings of
up to 600 mm outside diameter from
Wuppertal to Schweinfurt, the Schaeffler
Group has undertaken an important
step towards improving its delivery
performance.
During the years 2007/2008, the company
invested ¤ 3.7 million in considerably
FAG spindle ball bearings up to 600 mm
outside diameter from Schweinfurt
extending its machinery. This resulted in
higher flexibility in production, customer
demands have increased and delivery
times were reduced.
Other large bearings for machine tools,
such as axial bearings for vertical lathes
and bearing systems such as axial-radial
rotary table bearings with diameters
larger than 1,030 mm, continue to be
manufactured in Wuppertal and benefit
Large dimensions, precision to the µ:
High-precision FAG axial-radial bearing
(d>1,030 mm) for rotary tables
Super-precision double row FAG cylindrical roller
bearing of series NN30 with FAG spindle bearing
Coolant facility expanded: A milestone for quality and environmental protection in Schweinfurt’s large bearing production
Schaeffler Group Industrial’s location in Schweinfurt
Heart of the expanded coolant facility: Two large coolant tanks
with a capacity of 60 cubic meters each
Particular, for high precision rolling bearings the composition and the quality of the coolant is a crucial factor in a
successful grinding operation. In 2004, the coolant facility at FAG Schweinfurt was rebuild, in compliance with new
legal regulations. Having an operating capacity of 300 cubic meters per hour, this state-of-the-art facility features a
speed-controlled drive system and is especially environmentally friendly and energy efficient. In view of high production demand, the manufacturing capacities for large bearings, has steadily expanded over the past years. This went
hand in hand with an increase in coolant demand so that an expansion of the facility was required.
In late 2008, the Schaeffler Group undertook another significant upgrade of its coolant facility, investing over
¤ 800,000. Equipped with new tanks and additional filter systems, the facility now supplies the large bearing production facility with about 800 cubic meters of coolant mixture per hour.
New catalog for large bearings
Schaeffler Group Industrial has published
its GL1 catalog for large bearings of the
INA and FAG brands. This compendium
includes all the technical information
relevant for large rolling bearings with
outside diameters from 320 mm to 2,800
mm maximum. In addition, it highlights
appropriate accessories and numerous
special rolling bearings, spherical plain
bearings and bearing housings.
The “GL1” shows which products are
suitable for specific bearing supports,
what aspects need to be considered
during the design process and what
tolerances the adjacent construction
should offer. It also provides detailed
information about service life calculations,
temperatures, loads and lubricants and
explains how the products are properly
mounted and maintained. The large
bearing catalog is available in German and
English.
Large bearing catalog GL1
Order now or browse directly on the
internet at www.schaeffler.com
Issue 1 · 2010 – Page 6
“added competence” – Creativity techniques for engineers, Part 16
TIPS
The Theory of Inventive Problem
Solving
TIPS helps resolve technical problems by offering several tools that can be used either individually or in
combination. These include, for example, “classical” tools developed by Altschuller himself:
1.Innovation principles and contradiction matrix
2.Separation principles for resolving physical contradictions
3.Algorithm or step-by-step procedure of inventive problem solving (ARIZ)
4.System of 76 standard solutions and substance-field analysis
5.S-curves and laws for the development of systems (evolution laws of technical development,
patterns of technical evolution)
6.Principle of ideality
7.Modeling technical systems with the help of “small scale models”
In past issues of “added competence”, we introduced
you to various types of creativity techniques. This
time, we would like to present you with a method
that is used in technical area only: TIPS – the Theory
of Inventive Problem Solving. It is not without reason
that many companies in the automotive, industrial and
electronic sectors have firmly integrated this method
for systematic product and process improvement in
their development process.
While the acronym TIPS has become established in
English speaking countries, the original name of this
method is TRIZ, which is the Russian acronym for the
same phrase, “Theory of Inventive Problem Solving”.
TIPS is based on the idea that scientific and technical
problems can be solved without compromise. TIPS
helps to quickly find selective high-level solutions and
overcome mental blocks. Several methodical tools for
problem solving, analysis and avoidance of errors as
well as for the generation of ideas are available.
The “inventor” of this method was Genrich Soulovich
Altschuller (1926 –1998), a brilliant scientist and keen
thinker from the former USSR. When perusing approx.
40,000 patent specifications, he recognized that
• technical systems develop according to fixed rules
towards increasing ideality,
• the development of technical system is driven by
overcoming contradiction, while increasingly using
existing resources,
• innovative solutions evolve through adapting existing
solutions from other fields and industries.
TIPS follows these guidelines in its search for answers:
• The ideal design is the desired end result.
• A problem can be overcome when the existing
contradiction is resolved.
• Only inventions represent progress.
• Innovation can be an organized systematic process.
Additional methods have been developed by disciples
of Altschuller, incl. innovation checklist, cause-effect
diagram, anticipating error detection, resource checklists and many more.
The methodical tools are suitable for resolving a wide
variety of problems: There are tools for tasks such as
inventing, improving, designing and developing new
product generations, emergency solutions and measuring tasks. The analytical tools include, for example the
innovation checklist as well as function and object
modeling.
The knowledge-based TIPS tools are used to synthesize
solution concepts for invention problems. These
knowledge-based tools include innovative solution
principles, standard solutions as well as the utilization
of physical, chemical and geometric effects.
What advantages does working with TIPS offer?
• Improved innovation capability of employees
• Higher productivity
• Reduced time-to-market
• Lower costs
• Improved quality, reliability and safety
• Avoidance/reduction of customer complaints
Reference:
Orloff - Altschuller, Grundlagen der klassischen TRIZ
ISBN-10:3540340580
New Grease Group concept for FAG Spindle bearings
ensures maximum supply reliability
Grease Group GA21 for spindle bearings
It’s a well-known fact that
the grease life is the decisive factor for bearing ser­
vice life. However, another
time factor is becoming
increasingly important
for manufacturers
and users and this
is the bearing reference life. The
Schaeffler Group
therefore decided
to introduce a
Grease Group concept several years ago
and introduced it step by step. It is aimed
at ensuring the best possible supply reliability for the customer. To this end, two
basically equivalent greases are kept
in store for every type of application of
grease lubricated bearings. This strategy has now been rolled out for spindle
bearings too so that heavy-duty grease
L252 is available in addition to the tried
and tested spindle bearing grease L75.
Greased bearings, in particular sealed
spindle bearings, are already being sup-
plied filled with one of these two greases
from the Grease Group as standard.
In quotations, sealed bearings are therefore referred to as being greased with
lubricant from Grease Group GA21.
Open bearings that are supplied in
greased condition upon customer
request, are also offered as GA21 and
carry this designation suffix in their code.
Grease Group GA21 contains two heavy-duty
greases, L75 and L252, that are ideally suited for
bearings operating in machine tool spindles
Issue 1 · 2010 – Page 7
Lubtect* – Lubricant grease with built-in profitability increase
Increased service, higher reliability, freedom from maintenance
Optimum suitability for applications
characterized by low to medium speeds,
high loads and low temperatures
Lubtect* bearings have the same load
ratings as standard greased bearings. The
space-filling characteristic of Lubtect*
and the resulting contact with the individual bearing components leads to a slight
100
90
80
70
60
50
40
30
20
10
0
 Mean temperature at 2,000 rpm
Functional test: Ball bearing 6206
 Mean frictional torque at 2,000 rpm
58 °C
57 °C
52 °C
39 °C
5 Ncm
Standard
grease
10 Ncm
Schaeffler LT
Lubtect*
increase in frictional torque. It is therefore
recommended to apply a radial minimum load > 1% of the dynamic load. This
means that there are applications where
this solution is not an option. Moreover,
the initial purchasing costs are slightly
higher due to the filling process. In specific applications, however, the benefits
of the new lubricating solution come to
bear immediately: In virtually all applications with comparatively low speeds and
temperatures below 70 °C on the outer
ring, the use of Lubtect* will quickly lead
to the profit zone. It is particularly suitable
for slewing movements and all conditions
12 Ncm
Competitor
A
14 Ncm
Frictional torque [Ncm]
This ensures that an appropriate amount
of lubricant will get precisely to the point
where it is needed during operation – to
the rolling element contact zones. In the
critical rolling contact zone, Lubtect*
provides a larger amount of oil than lubricating greases. Under special application conditions, Lubtect* can therefore
offer advantages in terms of service life
and reliability against failure. Since the
synthetic material fills the free space in
the bearing almost completely, it forms
an additional barrier against contamination. Bearings with Lubtect* require no
relubrication.
Operating temperature and frictional torque compared with other lubricant solutions
(deep groove ball bearing 6206).
Temperature [°C]
Lubtect* is a new lubricant compound
consisting mainly of polymer and a lubricant. Application-optimized Schaeffler
rolling bearings filled with Lubtect* form
a solid, porous synthetic matrix structure
after the filling process. This structure
stores a more effective lubricant amount
in the rolling contact zone than this is
the case in conventionally greased rolling bearings.
In contrast to similar solutions on the
market, Schaeffler’s Lubtect* runs at a
lower frictional torque and at lower temperatures, when compared with a deep
groove ball bearing of series 6206 at
speeds of 2,000 rpm.
In the applications described above,
Lubtect* pays off literally “on the spot”:
These bearing supports run longer and
are more reliable!
Competitor
B
where rolling bearings tend to bleed in the
rolling contact zone. Also, when multi-row
rolling bearings are mounted in a vertical
position or in cases where the mounted
bearing is subject to external acceleration,
the even distribution of the compound
ensures favorable lubricating conditions.
At maximum speed parameters (n • dm)
of 120,000 mm • rpm in deep groove ball
bearings or 48,000 mm • rpm in needle
roller bearings, the use of Lubtect* opens
up an option for system optimization. The
compound is also suitable for use with
cylindrical, spherical and tapered roller
bearings.
Scanning electron microscope image of the
Lubtect* synthetic structure
*Trade mark application filed at the
German Patent and Trade Mark Office
The success formula for your application:
(Lubricant + Polymer + Colorant) x machining processes = Lubtect*
Lubtect* + specific application =
increased service life + higher reliability + freedom from maintenance
= productivity increase of the system!
Lubtect* can be ordered by adding the suffix “LT” to the bearing code. For example,
a corresponding deep groove ball bearing would have the designation 6002-C2HRS-LT. For more information about Lubtect*, please refer to publication SSD_20
(available for download at: www.schaeffler.com)
Lubtect*
Thermoplast + Lubricant
x Mixing / heating = Lubtect*
Lubtect* compound composition
+ Colorant
Issue 1 · 2010 – Page 8
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question:
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Schaeffler’s bearing support
calculation tool?
Last name, first name: ____________________________________________________
Company: _______________________________________________________________
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Tel.: _ __________________________________________________________________
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Please enter the correct answer on the
adjacent coupon. Complete the form
and return it to:
Schaeffler Technologies GmbH & Co. KG
Production Machines division
IEBSWE-SM
Georg-Schäfer-Straße 30
D-97421 Schweinfurt
Fax: +49 (0) 97 21/91 14 35
Closing date: Dec. 31, 2010
E-Mail: _________________________________________________________________
We would appreciate it if you would answer the following questions:
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There is no legal recourse.
Employees of Schaeffler KG and trading partners are not permitted to take part.
Preview of Issue 2/2010
1. New rotary table bearing series YRTC
2. New spindle bearing catalog
3. Job description: Mechatronics
technician
The winner of our quiz in Issue 1/2009
Mr. Peter Speh (left) from Müller
Weingarten AG in Weingarten is the lucky
winner of an Apple iPod touch. Manfred
Abend, Field Service Engineer from
Schaeffler’s engineering office StuttgartSouth presented the prize to him.
+++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER
You will find Schaeffler Group Industrial
at the ITMA+CITME ASIA trade fair in
Shanghai on Booth B04, Hall W2 from
June 22–26, 2010 as well as at the JIMTOF machine tool fair in Tokyo from Oct.
28 – Nov. 2, 2010. At the IMTS in Chicago, the Schaeffler Group will host a sym-
posium on Sept. 15, 2010 featuring the
highlights presented at the tradeshow,
and another symposium will take place
at the BIEMH in Bilbao, Palacio de
Congresos y de la Música Euskalduna
Jauregia, on June 2, 2010.
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Your local distributor:
HOTLINE
Low-maintenance plain
bushes for rotary and
linear movements in
minimum available
space
The new INA Metal-Polymer composite plain bearings are a costeffective alternative for applications
with minimum available space and
a comparatively high sliding speed.
They are particularly efficient in
oscillating applications where they
surpass the rating life of conventional
bearing types many times over. In
addition, all the new Metal-Polymer
bearings are lead-free and, therefore, environmentally friendly.
Bearings of type E40 are particularly
suitable for oscillating and rotary
loads under dry running conditions.
Type E50 is low maintenance.
It merely requires initial grease
lubrication at the start of operation.
Applications for these new INA plain
bearings can be found especially
in the production machinery, construction and agricultural machinery
sectors, as well as in commercial
vehicles – in other words wherever
high loads, heavy shock loads and
vibration form part of the operating
conditions.
Imprint
Published by:
Schaeffler Technologies GmbH & Co. KG
Production Machinery division
Editor in chief:
Claudia Kaufhold
Adress:
Schaeffler Technologies GmbH & Co. KG
IEBSWE-SM
Georg-Schäfer-Straße 30
D-97421 Schweinfurt
Tel. +49 (0)9721‑/‑91 19 11
Fax +49 (0)9721‑/‑91 63 16
INA
Schaeffler Group USA Inc. · Tel: 803-548-8500 · Fax: 803-548-8599
FAG
Schaeffler Group USA Inc. · Tel: 800-243-2532 · Fax: 203-830-8276
The Barden Corporation
USA
U.K.
E-Mail: pmsales@schaeffler.com
www.schaeffler.com
New INA Metal-Polymer
composite plain bearing on
the market:
Tel: +1 203-744-2211 · Fax:+1 203-744-3756
Tel: +44(0) 1752 725506 · Fax:+44(0) 1752 725506
A Member of the Schaeffler Group
Editorial team:
Helmut Bode
Rainer Eidloth
Claudia Kaufhold
Norfried Köhler
Martin Schreiber
Produced by:
Buena la Vista AG, Würzburg