Επέκταση γκάμας προϊόντων SKF

Το τελευταίο τρίμηνο η SKF παρουσίασε 54 νέα σετ, βελτιώνοντας έτσι ακόμη περισσότερο την κάλυψή της σε όλες τις γραμμές προϊόντων της.

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SKF inaugurates large-size bearing test centre

SKF has inaugurated its newly-built Sven Wingquist Test Center in Schweinfurt, Germany, an investment totalling EUR 40 million. The center is the first in the world that is able to test large-size bearings under actual operating conditions. This allows for a more efficient development process for customers, as well as improved bearing performance and increased service life.

The Sven Wingquist Test Center has two testing rigs. One rig is designed for the testing of wind turbine main shaft arrangements. The second rig will be used for testing bearings used in other industrial sectors, including mining, construction, steel manufacturing and marine transport.
Combined with SKF’s continued development of diagnostics, condition monitoring and simulation methods, these rigs will contribute to reduced testing and product development lead-times and provide deeper insights into bearing performance.

Victoria Van Camp, CTO and President, Innovation and Business Development, says: “No other test center is capable of testing large-size bearings this accurately, under actual operating conditions, giving us and our customers a significant strategic advantage. The technologies being used here in the Sven Wingquist Test Center will help save our customers time and resources, whilst supporting their ambitions of increased reliability and service life.”

The test centre has received funding from the Bavarian Ministry of Economic Affairs, Media, Energy and Technology and the German Federal Ministry for the Environment, Nature Conservation, Construction and Reactor Safety.

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SKF delivers higher-performance across its INSOCOAT bearings range

With it’s latest generation of electrically insulated bearings, SKF has raised the performance standard to provide constant electrical performance, even in high humidity.

SKF’s INSOCOAT bearings range – comprises bearings with an electrically insulating coating on the external surfaces of its inner or outer ring, plasma-sprayed with an aluminium oxide coating. The coating, which is naturally hygroscopic, is sealed with a resin to protect against the conductive effects of high humidity and moisture ingress.

These bearings are specially designed and manufactured for use in rotating electrical machines, such as industrial electric motors, traction motors and generators. They prevent the passage of harmful electrical currents from the rotor to the machine frame via the bearings, which causes progressive electrical erosion of the bearings’ rolling contact surfaces and ultimately premature failure.

Following the introduction of an improved plasma spray coating process and optimised ceramic layer, SKF can provide this superior insulating coating as standard and off-the-shelf across its entire INSOCOAT range.

INSOCOAT bearings are now able to withstand voltages of 3000V DC sufficient to cope with the vast majority of stray bearing current problems in electrical machines.

In addition, the upgraded moisture-resistant coating provides greater protection against humidity storage environments which can compromise a bearing’s insulating properties before it is even placed in service, making INSOCOAT bearings highly robust during transport and handling.

Combining both bearing and insulation in a single solution, INSOCOAT protects against electrical erosion at significantly lower total cost of ownership compared with other techniques such as shaft or housing insulation.

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SKF Explorer single row angular contact ball bearings for high speeds

New SKF Explorer class bearing from SKF offers faster speeds, improved robustness and optimised reliability

SKF’s Explorer high performance, long-life bearings range now includes an improved single row angular contact ball bearing that delivers a number of benefits for designers and operators of screw compressors, pumps and gearboxes seeking to reduce the total cost of ownership of this equipment through improved reliability and energy efficiency.

Featuring a redesigned brass cage that delivers reduced noise and vibration levels and improved robustness, the new 40° contact angle bearings significantly increase the limiting speed up to 30 % compared to the previous design.

The new cage geometry and the use of stronger brass material reduce cage contact forces and increase cage strength, ensuring greater tolerance of shock loads and vibration, while delivering the significantly higher speed capability even under severe operating conditions.

In addition to the redesigned 40° contact angle, a new contact angle of 25° is also offered, giving the bearing a further 20% increase in speed over that of the 40° version, while enabling higher radial loads to be accommodated. In each case, the ball-to-cage contact arrangement allows cooler running and greater temperature stability, while noise and vibration levels are reduced by 15% in both the 40° and 25° versions. Sealed variants of these bearings are also available for applications that may be more difficult to maintain, preventing contaminants from entering the bearing during installation and subsequent operation.

Bearing arrangements that include a 40° contact angle unit taking the main load with a 25° unit acting as a back-up bearing offer improved robustness for applications where the axial load is predominantly in one direction, resulting in longer service life.

SKF Explorer class bearings are the result of years of development and accrued expertise in bearing design, tribology, metallurgy, lubrication and machining techniques. The new 40° and 25° SKF Explorer class single row angular contact ball bearings are an attractive option for operators of screw compressors, pumps and gearboxes seeking cooler running, more energy efficient and longer life bearings that will ultimately set their products apart from the competition.

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SKF bearings put Scuderia Ferrari in the driving seat

The 2017 Formula 1 season just started, and SKF is right at the heart of it again, extending its long association with Scuderia Ferrari. SKF will supply a range of specialist products as well as its design and validation expertise to the Italian motor racing giant.

“We have had close and lasting technical cooperation with Scuderia Ferrari for 70 years,” says Jean-Sylvain Migliore, SKF Racing Unit Manager. “Our parts offer real technical advantages – ranging from low friction and compactness to higher toughness and extended life.”

Under the agreement, SKF will supply all customised products that fit into the chassis, such as wheel bearings and plain bearings. At the same time, it will supply a broad range of products for the engine and gearbox – including cylindrical and needle roller bearings, deep groove and angular contact ball bearings and hybrid products.

The SKF bearings provide top end performance: special materials – such as high speed and high temperature steel – as well as special coatings and other complex features all contribute towards meet the exacting standards of Formula 1 components.

Some of the materials, including ceramics, special steels, lubricants and coatings, are still under development in SKF’s R&D centre. In addition, SKF will supply Scuderia Ferrari with testing facilities in order to improve factors such as condition monitoring.

“SKF has been associated with Ferrari since the foundation of the Maranello factory. Over the years, Ferrari has enjoyed the fruits of this co-operation and looks forward to a bright future together” says Maurizio Arrivabene, Scuderia Ferrari’s Team Principal at Scuderia Ferrari.”

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SKF helps the Ducati Team gear up for MotoGP 2017

SKF’s high performance parts and specialist technical knowledge are once again helping the Ducati Team prepare for success in this year’s MotoGP World Championship. The season started on March 23 with the Grand Prix of Qatar on a track that last year saw the Italian motorcycle manufacturer not only place second thanks to Andrea Dovizioso but also claim the circuit’s top speed record with Andrea Iannone’s 351.2km/h. The 2017 Ducati Team line-up will see five-time world champion Jorge Lorenzo from Spain join Italian Andrea Dovizioso for the 18-round season.

“Building on a more than 18-year strong strategic partnership with Ducati Corse, our advanced engineering solutions and bearings expertise have long helped Ducati achieve racing excellence including last year’s amazing results,” Alberto Guerrini, who is responsible for the Ducati account at SKF, said. “With the technical advantages of our solutions, such as low friction, long service lives and robustness, we are confident Ducati will enjoy another fantastic season.”

SKF is supporting Ducati with the design and validation of a broad range of specialist components that boost the performance of its purpose built racing machines. The custom engineered parts include deep groove and angular contact ball bearings, cylindrical, spherical and needle roller bearings, hub bearing units and inner rings.

The bespoke parts are developed to withstand the tough demands of the motorsport sector and feature special materials, such as viton, and heat treatments for consistently reliable, high precision operation. SKF also analyses the parts returned from races and track tests in dedicated laboratories to ensure every component is continually being improved further and optimised.

Mauro Grassilli, Marketing and Sponsorship Manager of Ducati Corse, said: “With SKF’s commitment to the constant development of innovative customised solutions and the flexibility of its factories and supply chain for urgent deliveries, the partnership we have with them is a vital element of our success on the track. Thanks to its continued technical support and dedication we have no doubt that this season will be better than ever.”

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