Online magazine for design and development

Here you will find everything that the designer needs for his design and the development engineer for his new development, from the draft to quality assurance in production, such as new products, their applications, new technologies or research results. Company reports as well as topics on technological and megatrends in all industrial sectors complete our range of industry news. Let's start with the news.

Company News

Ebm-Papst wants to sell industrial drive technology to Siemens
The Ebm-Papst Group has announced that it will sell its Industrial Drive Technology (IDT) division to Siemens AG. Both sides have signed a corresponding agreement.
Jumo's new Sensilo plant construction is progressing
Jumo is building a factory in the technology park for the production of temperature and pressure sensors with a production area of ​​around 13 m². At around 000 million euros, the new building is the largest investment in the company's history.
3DExperience Word 2024 in Dallas
At 3DExperience World 2024 in February in Dallas, Texas, Dassault Systèmes celebrated the event's 25th anniversary. The annual user meeting supports the global community in the development of future-proof products and processes.
Michael Koch GmbH moves into a new workshop
There is now more space available in Michael Koch's “Factory” for the assembly of customer- and machine-specific safe braking resistors. The new, modern hall was recently “taken by storm” by the employees.
Elon Musk is suing OpenAI for profit-making
Elon Musk files a lawsuit against OpenAI and CEO Sam Altman, accusing them of breach of contract because the company, which was originally designed as a nonprofit, is now operating for profit.
AREAS OF EXPERTISE

Industry news for your design and development from the specialist areas

communication technology

communication technology

World's first Omlox testing laboratory put into operation

The first Omlox testing laboratory in the world has been launched. The PI granted the Fraunhofer Institute Lemgo approval as a PI test laboratory for Omlox.

To the post

switch cabinet

switch cabinet

On to the intelligent drive train for predictive maintenance

The Roba-brake-checker module or the torque-measuring shaft coupling from Mayr ensure intelligent safety in smart production.

To the post

plastics

plastics

The first 100 Igus bikes hit the streets

The first 100 Igus Urban Bikes hit the streets and an in-house production facility with a capacity of 10.000 bicycles is set up in Cologne.

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Couplings

Couplings

Torque measuring shaft coupling

The smart steel multi-plate coupling Roba-drive-checker from Mayr can do more than just transmit torque and compensate for shaft misalignment.

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INDUSTRY SPECIALS

Industry news for your design and development from the branches

food technology

food technology

Lubrication and sealing-optimized linear guide

Schaeffler presents linear guides for food technology with optimized seals, wipers and long-term lubrication units.

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Mobile Machinery

Mobile Machinery

Flexible, customizable gateway for agricultural technology

IFM Electronic is presenting the Isobus Gateway at the Hannover Messe, which is designed for agricultural equipment and can be specifically adapted.

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Energy Technology

Energy Technology

All Electric Society – vision of the future of connectivity

At the Hannover Messe Preview, Harting gives an outlook on the Hannover Messe and draws the future picture of an “All Electric Society”.

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Inverter

Inverter

Certified servo controller with Profisafe interface

At Logimat, Wittenstein is presenting a safety-certified servo controller with a Profisafe interface and integrated safety card for AGVs.

To the post

EXHIBITION SPECIALS

Industry fair news

Hannover Messe promotes energy for sustainable industry
As a networked industrial ecosystem, the exhibitors demonstrate how climate neutrality can be achieved through the use of electrification, digitalization and automation under the guiding theme of Energizing a sustainable Industry.
Control Fair 2024 | The industry is already looking forward to Stuttgart
Control 2024, the important international trade fair for quality assurance, will take place from April 23rd to 26th in Stuttgart. The trade fair places a particular focus on automation and digitalization.
SPS Nuremberg: Now in 16 halls!
The SPS – Smart Production Solutions from November 14th to 16.11th. 2023 will see significant growth in the trade fair compared to the previous year and is on the way to pre-Corona levels.

Discover the world of spindle bearing from Schaeffler, the market leader in storage technology. Whether for high-speed applications or tough industrial conditions. The automotive and industrial supplier offers a wide range of spindle bearings that have proven themselves in terms of durability and precision. Machine performance can be increased with these innovative spindle bearings.

Schaeffler VCM spindle bearing


Contents

Spindle bearings for every machine tool

Schaeffler spindle bearing VCM06.09.2023/XNUMX/XNUMX | On the EMO 2023 Schaeffler will present its finely graduated range of spindle bearings. It consists of cylindrical roller bearings and angular contact thrust ball bearings with small, medium and large balls for axial loads. There are various types for the high-precision axial bearings Rollingsteels, cages and ceramic rolling elements. With the Schaeffler offers the right bearing configuration for every milling, turning and grinding spindle.

An Highlight is the VCM series with medium-sized balls made of high-performance Vacrodur steel. Spindle manufacturers can use this bearing to construct particularly robust and powerful spindles.

Current studies show that more than 80% of all damage to spindles that causes failures can be traced back to the spindle bearings. Schaeffler counteracts this with an innovative manufacturing process, special alloy components and a coordinated multi-stage heat treatment. The result is the high-performance roller bearing steel Vacrodur.

Spindle bearing made of Vacrodur with 20 times longer service life

Schaeffler Vacrodur spindle bearings31.07.2017/XNUMX/XNUMX | Schaeffler has one with Vacrodur Rolling-material developed with the manufacturer of Machine Tools can significantly increase the load capacity of the spindles in terms of dynamic load capacity. In addition to above-average loads, the service life can also be significantly extended even under the most difficult conditions. Lower unit costs, longer machine running times and higher availability are the benefits for machine tool construction.

According to current studies, a good 80% of all failure-causing spindle damage can be traced back to the spindle bearing. Schaeffler developed the new one with an innovative manufacturing process, special alloy components and a multi-stage heat treatment tailored to this High-performance roller bearing steel Vacrodur.

Vacrodur hardness stable up to 400 ° C

Unlike conventional rolling bearing steels such as 100Cr6 With Vacrodur, the hardness does not decrease at temperatures of over 120 ° C, but remains stable up to over 400 ° C. There is no structural change up to this very high temperature. All material properties change only negligibly.


Schaeffler rolling bearingsBearings for everyone in over 60 industries


Spindle bearings made from Vacrodur are therefore retained very high thermal loadhow they z. B. by the waste heat in a motor spindle or due to insufficient lubrication, highly resilient and extremely long dimensional and dimensionally stable.

The ingress of dirt is often one of the main factors limiting the service life of the spindle bearings. Several mechanisms are responsible for this: Abrasion and various initial damage to the components Particle retention

Resistant to abrasive wear

Vacrodur from Schaeffler Technologies has a very homogeneous structure with a high proportion of very finely divided carbides. The carbides are responsible for the exceptional resistance of Vacrodur to abrasive wear. A multi-stage heat treatment of the specially alloyed material also produces very high hardness values ​​of up to 65 HRC and a tough basic structure that can withstand the very high temperatures of the components by over 400 ° C without loss of hardness resists.


Schaeffler CM Rolling Bearing InterviewInterview: Digital service for Industry 4.0 rolling bearings


Due to the greater hardness compared to other rolling bearing steels, the Rolling over a foreign particle Smaller impressions in the career and thus also lower reproaches. These can easily be reduced again by the ductile material matrix during the subsequent rollover. In tests under controlled pollution conditions, it was possible to achieve an almost 20-fold increase in the service life up to bearing failure compared to the previous benchmark.

The high rolling resistance and resistance to Rolling fatigue With good lubrication conditions, bearings made from Vacrodur have a significantly longer service life. In certified tests, a 2,4 times higher dynamic load-bearing capacity compared to standard roller bearing steel 100Cr6 could be proven.

This corresponds to a 13 times the extension the nominal Bearing life. Under inadequate lubrication conditions there is even one 25 times the extension.

Other spindle bearings for machine tools

The main spindle is largely responsible for the performance of machine tools. Speed, rigidity and robustness determine the choice of spindle bearings. In developing the M series in X-life quality the Schaeffler engineers attached particular importance to the friction-optimized internal design and a large tolerance to rapidly changing thermal operating conditions. Because you meet them in Motor spindles frequently on.


Tretter angular ball bearings kDouble row angular contact ball bearings for ball screws in machine tools


The optimized construction results in a clear lower increase in bearing preload through, for example, overlapping of the bore and bearing, high speeds and large temperature gradients between shaft and housing.

Three types of spindle bearings

The M series from Schaeffler is available in three Performance classes M, HCM and VCM

  • Within the Mvariant, the balls and rings of the X-life high-speed spindle bearings are made of 100Cr6 rolling bearing steel. This variant represents a powerful and economical bearing for motor spindles.
  • The X-life high-speed spindle bearings of the HCM-variant are with Ceramics Balls, the rings are made of roller bearing steel 100Cr6. With the use of the HCM variant, the performance of motor spindles can be increased due to the very high speed suitability.
  • The balls of the X-life high-speed spindle bearings VCM-Variant are also made of ceramic. The bearing rings, on the other hand, are made from the high-performance material Vacrodur described above. This high-performance steel has the outstanding properties mentioned above.

Large selection of variants with many sizes

The X-life high speed Spindle bearings M, HCM and VCM are available for the 70 and 719 series with a nominal contact angle of 17 or 25 degrees. There are three different preloads to choose from. Possible bore diameters range from 25 to 130 mm, initially sealed from 50 to 80 mm. The spindle bearings can be either open or sealed. As an option, Schaeffler offers the bearings in a Direct Lube design with lubrication holes and sealing rings on the outer ring.


Room clamping elementsZimmer clamping elements fix machine tool axes


Machine tool and spindle manufacturers can choose between the three performance classes when converting their spindle bearings to the X-life M series. The average longer service life leads to significant savings in terms of operating costs of the machine tools.

Related to the Operating Hours there are also lower costs for spindle repairs. In particular, the spindle bearings VCM made of Vacrodur withstand even the most difficult operating conditions considerably longer than bearings made of conventional materials and make spindle drives significantly more robust. Schaeffler Technologies presented the first FAG spindle bearing series in X-life quality made from Vacrodur for the first time at EMO 2017.

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