Nuremberg, 2017-Mar-14

Highest power density on the market
Increased torque and speed range as well as expanded bore capacity
Temperature-resistant down to -50 degrees Celsius
Certification according to API and ATEX

At the Hannover Messe 2017, Siemens will present an additional series in the range of torsionally rigid all-steel disc couplings: the new N-ARPEX coupling with improved performance characteristics. An optimized disc pack and a revised component design facilitate the transmission of higher torques and speeds as well as a higher bore capacity with standard hubs. All-steel couplings can be used in all applications that require reliable torque transmission in set-ups with shaft displacement.


The picture shows the N-ARPEX all-steel coupling from Siemens


The N-ARPEX all-steel coupling is suitable for driving pumps, fans, compressors, generator and turbine drives as well as paper and printing machine drives. The couplings are designed for a potentially explosive atmosphere in accordance with directive 2014/34/EU and fulfill the requirements of API610/ISO13709 and API671/ISO10441. N-ARPEX all-steel couplings are designed as standard for very low temperatures down to -50 degrees Celsius – which is up to ten degrees lower than previous versions in the ARPEX series.

Torque transmission accompanied by displacement compensation between the two machines to be connected is made possible by the all-steel coupling, which is backlash-free and torsionally rigid, but also flexible. Axial, angular and radial offset compensation directions are possible. The discs are made of stainless spring steel, are not subject to wear, and are consequently maintenance free.

For further information on Siemens at the Hannover Messe 2017, please see www.siemens.com/press/hm17 and www.siemens.com/hannovermesse

Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world’s largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of efficient power generation and power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2016, which ended on September 30, 2016, Siemens generated revenue of €79.6 billion and net income of €5.6 billion. At the end of September 2016, the company had around 351,000 employees worldwide. Further information is available on the Internet at www.siemens.com.