Magnetisch versus optisch Winkel-Mess-Systeme für Rundtischachsen im Vergleich
Shorter distance and
maximum quality for large
machine tool bearings
Page 5
CURRENT NEWS
Capacities for large bearings
Bearing down on efficiency
Experience and expertise for your competitive edge – Simulation, tests and service for high reliability
Just pick up the phone for application engineering advice
Answers to specific ques-tions can be found at www.schaeffler.com/ Services/Media Library (SSD_14_de_en)
Continued on Page 2 Expertise for bearings, measuring systems and direct drives
B
earin
g
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 Ch ar act eri stic
s high rigidity maximum accuracy low frictionhigher 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 Pr ef err ed ar ea of ap plic ation for mechanically driven, high precision rotary axes for mechanically driven, high precision rotary axes for bearing supports in direct drive high precision rotary axes
where angular posi-tions must be measured to an accuracy of a few angular seconds
where the speed capacity of YRTSpeed
bearings is not sufficient for
low-mainte-nance bearing supports
Service solutions from F’IS
Service for luxury cruise
liner Page 3
Integrated friction
calcula-tion funccalcula-tion
Page 4
Bearinx
©calculation tool
Magnetic versus Optical A comparison of angular measuring systems for rotary axes 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”.
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 func-tions, 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.
From advance development to the last day: Overall process support for the machine
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 – well-timed, on location, and in person.
Professional bearing selection
Consulting the rolling bearing catalog is
definitely helpful. However, when it comes to demanding machine tool applications or machines in the textile, printing, food and packaging industries or in productro-nics, our customers will always be able to discuss their specific applica-tions and designs with an expert contact partner at Schaeffler. In addition, much more detailed product informa-tion such as operating and diagnosis
instructions will be made available. Getting in touch with a specialized Schaeffler engineering expert early on will
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
value that enhances their products and helps them to stand out from their competi-tors: 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
Having a bearing on efficiency!
Continued from Page 1
Calculation with Schaeffler’s Bearinx® software Validation in testing Thermal simulation
Economic development drives innovation
The Schaeffler Group at EMO 2009 in Milan
Milan Cathedral
At the EMO tradeshow held in Milan in October 2009, the Production Machinery Business Unit introduced its Italian cus-tomers and the international press to the Schaeffler Group’s latest technical solu-tions 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 re-duced energy consumption, the develop-ment of innovative components, and new
products along with new applications for machines. It became obvious that, con-trary 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
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.”
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.
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 applica-tion to the complex thermal simulaapplica-tions
of direct-drive rotary tables including predictions concerning temperature development, heat conduction, convec-tion and heat radiaconvec-tion. This tool offers everything an engineering specialist
could wish for. Bearinx® is being
continu-ously 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 calcula-tion results under harsh reality condicalcula-tions 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 manufactu-ring and spare parts procurement, form a part of our offering.
Change in the machine tool indus-try is characterized in particular by the increasing importance of system partnerships between OEMs and sup-pliers. Manufacturers are increasingly focusing on their core competence and using ready-to-fit machine com-ponents and assemblies from high-performance technology partners. All parties involved are benefitting from this close cooperation – manufacturers, component suppliers and end custom-ers 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 sys-tems 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
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. Opti-mized 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
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.
Schaeffler’s product range covers all bearing supports in the machine tool
It goes without saying that the coopera-tion between DECKEL MAHO and Schaeffler Group Industrial is not re-stricted to components and competences in the field of linear technology. As a sys-tem partner, the Schaeffler Group offers a comprehensive range of products for all conceivable bearing positions in ma-chine 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.
Expertise in linear bearings: Components with “competence”
INA linear bearing solutions in DECKEL MAHO GILDEMEISTER machines
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
Test slide at DECKEL MAHO Pfronten for examining the machine geometry (X axis) and adjusting the guideways
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)
FAG DTECT X1 in ABB Marine Azipod drive Cruise liner “Celebrity Solstice”, equipped with Schaeffler bearing technology and monitoring solutions Azipod drive
“Only the best for the guest” – this dictum has a ring to it in the tourism sec-tor, and it also applies to the technical services for luxury liners. The propulsion and steering drives of the “Celebrity Sol-stice”, 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 moni-toring systems. Measurements carried out during the test voyage and endoscopic measurements prior to commissioning documented the excellent bearing con-dition 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-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 manu-facturer 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!
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:
July 8, 2010 September 30, 2010 November 18, 2010
Contact:
FAG Industrial Services GmbH (F’IS), Tel.: +49 (0) 2407 9149-0 E-Mail: [email protected]
Available now: The new F’IS catalog for mounting tools.
Order now or download directly at: www.schaeffler.com
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 com-pany 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. Hav-ing manufactured over 10,000 machines since its foundation, the company can be rightly called one of the protagonists in the Italian and European lathe manufac-turer markets.
At present, BIGLIA offers a comprehen-sive 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 configura-tions also include a series of vertical lathes with inclined spindle, lathes with three automatic tool changers and multi-tasking 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 future- oriented 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
BIGLIA is firmly convinced that these strategic machine components fully comply with its customers’ high quality expectations. The technical and com-mercial 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 con-siders 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 de-velopment directly in situ.
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 deforma-tion 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
offered by the Schaeffler Group’s qualified field service application engineers and via the application engineering departments.
A partnership for top performance
BIGLIA Group counts on Schaeffler linear guidance and spindle bearing solutions
Energy-efficient systems thanks to friction calculation
Bearinx
®– A key to higher efficiency
A glance into the BIGLIA production
INA KUVE 35
Gearbox calculation with Bearinx® INA linear bearing units in action
Load distribution in a cylindrical roller bearing calculated with Bearinx®
Improved capacities for large bearing production
Shorter distances and maximum quality for large machine tool bearings
Large dimensions, precision to the µ: High-precision FAG axial-radial bearing (d>1,030 mm) for rotary tables
Large bearing catalog GL1
Order now or browse directly on the internet at www.schaeffler.com Super-precision double row FAG cylindrical roller
bearing of series NN30 with FAG spindle bearing
Coolant facility expanded: A milestone for quality and
environ-mental protection in Schweinfurt’s large bearing production
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 produc-tion 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 produc-tion facility with about 800 cubic meters of coolant mixture per hour.
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
FAG spindle ball bearings up to 600 mm outside diameter from Schweinfurt Single row FAG super precision cylinder roller
bearing N30
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.
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
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
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.
Grease Group GA21 contains two heavy-duty greases, L75 and L252, that are ideally suited for bearings operating in machine tool spindles
“added competence” – Creativity techniques for engineers, Part 16
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 check-lists 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 measur-ing 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 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”
It’s a well-known fact that the grease life is the deci-sive factor for bearing ser-vice life. However, another
time factor is becoming increasingly important
for manufacturers and users and this
is the bearing ref-erence 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 reli-ability for the customer. To this end, two basically equivalent greases are kept in store for every type of application of grease lubricated bearings. This strat-egy 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 there-fore 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.
New Grease Group concept for FAG Spindle bearings
ensures maximum supply reliability
Grease Group GA21 for spindle bearings
TIPS
The Theory of Inventive Problem
Solving
Reference:
Orloff - Altschuller, Grundlagen der klassischen TRIZ ISBN-10:3540340580
Lubtect* is a new lubricant compound consisting mainly of polymer and a lubri-cant. 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 roll-ing bearroll-ings.
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 lu-bricating greases. Under special
applica-tion condiapplica-tions, 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
contamina-tion. Bearings with Lubtect* require no
relubrication.
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 individ-ual bearing components leads to a slight
increase in frictional torque. It is therefore recommended to apply a radial mini-mum 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 spe-cific applications, however, the benefits of the new lubricating solution come to bear immediately: In virtually all applica-tions 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
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.
In contrast to similar solutions on the
market, Schaeffler’s Lubtect* runs at a
lower frictional torque and at lower tem-peratures, 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!
Lubtect* – Lubricant grease with built-in profitability increase
Increased service, higher reliability, freedom from maintenance
*Trade mark application filed at the
German Patent and Trade Mark Office
Operating temperature and frictional torque compared with other lubricant solutions
(deep groove ball bearing 6206).
Temper at ur e [°C] Friction al tor que [Nc m] Standard grease 100 90 80 70 60 50 40 30 20 10 0 Schaeffler LT Lubtect* Competitor A Competitor B
Thermoplast + Lubricant + Colorant
x Mixing / heating = Lubtect*
Lubtect*
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!
Scanning electron microscope image of the Lubtect* synthetic structure
Lubtect* compound composition
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-C-2HRS-LT. For more information about Lubtect*, please refer to publication SSD_20
(available for download at: www.schaeffler.com)
Mean temperature at 2,000 rpm Mean frictional torque at 2,000 rpm Functional test: Ball bearing 6206
39 °C
52 °C
57 °C 58 °C
5 Ncm 10 Ncm
+++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER
+++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER +++ NEWSTICKER
Win a trendy
iPad!
Competition
question:
What is the name of
Schaeffler’s bearing support
calculation tool?
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
There is no legal recourse.
Employees of Schaeffler KG and trading part-ners are not permitted to take part.
WIN!!!
Yes, I would like to win an iPad!
SOLUTION: ___________________________________________________________ Last name, first name: ___________________________________________________ Company: ______________________________________________________________ Street/No.: ____________________________________________________________ City/postal code: _______________________________________________________ Tel.: __________________________________________________________________ Fax: ___________________________________________________________________ E-Mail: ________________________________________________________________
We would appreciate it if you would answer the following questions:
Did we get your address right? Please let us know of any changes we need to make. (Please print letters)
Who else in your company should receive “added competence”?
What improvements would you like to see in the Production Machinery division?
The winner of our quiz in Issue 1/2009
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 JIM-TOF machine tool fair in Tokyo from Oct. 28 – Nov. 2, 2010. At the IMTS in Chica-go, the Schaeffler Group will host a
sym-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 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
PREVIEW
of Issue 2/20101. New rotary table bearing series YRTC
2. New spindle bearing catalog 3. Job description: Mechatronics
technician
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 Stuttgart-South presented the prize to him.
posium on Sept. 15, 2010featuring 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.
New INA Metal-Polymer
composite plain bearing on
the market:
Low-maintenance plain bushes for rotary and linear movements in minimum available space
The new INA Metal-Polymer com-posite plain bearings are a cost-effective 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, there-fore, 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, con-struction 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.
HOTLINE
Schaeffler Group USA Inc. · Tel: 803-548-8500 · Fax: 803-548-8599 INA
Schaeffler Group USA Inc. · Tel: 800-243-2532 · Fax: 203-830-8276 FAG
USA Tel: +1 203-744-2211 · Fax:+1 203-744-3756
U.K. Tel: +44(0) 1752 725506 · Fax:+44(0) 1752 725506
The Barden Corporation Your local distributor:
E-Mail: [email protected] www.schaeffler.com