Electrical Technology, Motors & Drives
Solutions for electric motors
Solutions for electric motors

Improved reliability and lower energy consumption, means finding ways to reduce the total cost of ownership while also complying with increasingly tougher environmental legislation. The challenge is to increase meantime between failures while optimising energy consumption over the entire life cycle of rotating assets as energy accounts for a significant portion of total motor ownership costs. In committing itself to excellence in products and performance, SKF puts its expertise acquired through years of research and commitment in every industrial segment, from automotive to aerospace, from heavy industry to consumer goods. This commitment is manifested throughout all stages of the manufacturing cycle. From new model development to after-sales service, SKF provides the highest levels of expertise, manufacturing quality and customer service – from concept to utilisation.

For bearings, friction loss = energy loss. Compared to standard SKF bearings, SKF E2 bearings cut bearing friction losses by 30–50%. Compared to bearings from other manufacturers, SKF E2 bearings can reduce friction losses even more. Installing these bearings during motor repairs gives end-users an opportunity to save energy – the bigger the motor, the bigger the potential for savings.
Because lower friction means less heat generated in the bearing, SKF E2 deep groove ball bearings run cooler than conventional SKF bearings. Pre-greased with our own specially developed low-friction grease, SKF E2 deep groove ball bearings can reduce the likelihood of future breakdowns, boosting uptime and process productivity.

All of these factors combine to enable faster motor speeds and longer bearing and motor lifecycles.
Ultimately, SKF Energy Efficient deep groove ball bearings can boost motor uptime and energy efficiency, reducing maintenance, repairs and operating costs in the process.

SKF Hybrid bearings combine steel rings and rolling elements of bearing grade silicon nitride (Si3N4) and are dimensionally interchangeable with similarly sized all-steel bearings, however they can substantially improve reliability and robustness particularly in applications where the bearings are often exposed to potentially damaging abrasive particles, inadequate lubrication, vibration or stray electric currents.

Bearing grade silicon nitride, an engineered ceramic material, has a uniform and clean microstructure, which is extremely hard and tough. The material, which can be used as an insulator, is chemically inert.
Due to the hardness and low density, these bearings are able to run at higher speeds and with lower friction than equivalent steel bearings, also resulting in extended grease life.

Seals have a crucial impact on system performance. Life and reliability of what is often considered a simple component can make all the difference to your products and operations.
To be effective, industrial shaft seals should operate with a minimum of friction and wear, even under unfavourable operating conditions. In order to meet the requirements of a variety of different applications and operating conditions, SKF industrial shaft seals for rotating machine components are manufactured from many different designs, materials and executions. Each of these designs and material combinations has specific properties, making them suitable for a particular application.

SKF Speedi-Sleeve is a well-proven solution used to provide an excellent sealing surface for radial shaft seals, while reducing the need for costly shaft machining or maintenance. Two versions are available: standard for general purpose and SKF Speedi-
Sleeve Gold with a thin, metallic coating for use under highly abrasive conditions.
SKF Speedi-Sleeve combines a proprietary stainless steel material and manufacturing process, resulting in an optimised seal counterface that minimises wear on both the sleeve and sealing lip. If the right size is selected, the sleeve will have an adequate tight it on the shaft and will not require any adhesive. Seal contact surface is wear resistant and manufactured to minimise directionality (0° ±0,05) with a finish of Ra 0,25 to 0,5 μm.



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