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03 INA bearings type AXS

03 INA bearings type AXS make a convincing case, particularly thanks to their low weight and minimized design envelope combined with respectable load ratings the shaft end, while the outer ring is centered in the housing bore. The AXS series utilizes only the quantity of material that is absolutely essential for the rolling contact. They are always used in pairs and were developed for combined axial and radial loads. While SGL bearings generally have a contact angle of 45°, AXS bearings are available with both a 45° and a 60° contact angle for axial loads. AXS angular contact roller bearings are used in applications with swiveling operations or low speeds, such as gearboxes for precision solar panel tracking or in actuators and feed drives for machine tools. They also prove their potential when implemented in painting robot hand axes at Dürr: The minimal weight, small cross-section of the bearings and the high rigidity of the roller contact allows a lightweight, thin-walled construction to be created with a very high load carrying capacity and plenty of free space for the paint hoses to pass through. This together with the high tilting rigidity of the bearing support makes precise spray painting lines and a perfect spraying pattern to be achieved. What is more, the bearings are very affordable because the rings are manufactured using forming methods. “Our cylinder roller-based SGL and AXS bearing series completely fulfills the demands for minimal design envelopes combined with high load carrying capacities and high rigidity that are placed on output side bearing supports in robotics and precision gearbox manufacturing today. Particular focus must be placed on the design of the bearing support. Calculating the rigidity of SGL and particularly the AXS bearings is no small matter either. We can provide our customers with optimum assistance here using Bearinx, our software tool for calculating shaft system rolling bearings and linear guidance systems, and also with our enhanced CAE calculation tools. In Bearinx, we calculate the individual rolling contact and displacement of the bearings and also that of the shafts and gear teeth – in other words the entire system.” Photographs: Schaeffler MACHINE ELEMENTS About Schaeffler AG The Schaeffler Group is a global automotive and industrial supplier. By delivering high-precision components and systems in engine, transmission, and chassis applications, as well as rolling and plain bearing solutions for a large number of industrial applications, the Schaeffler Group is already shaping “Mobility for tomorrow” to a significant degree. The technology company generated sales of approximately EUR 13.3 billion in 2016. With around 87,900 employees, Schaeffler is one of the world’s largest family companies and, with approximately 170 locations in over 50 countries, has a worldwide network of manufacturing locations, research and development facilities, and sales companies. 04 Dipl.-Ing. Hans-Georg Kierdorf is an application engineer for industrial gearboxes at Schaeffler WORLD OF INDUSTRIESMOTION, DRIVE & AUTOMATION 5/2017

Product News The new docking system helps increase the efficiency of engine test bench The new adaptive docking system from Reich-Kupplungen helps automate the process of changing the test objects for engine testing to the greatest possible extent and thus enables a significant increase in the efficiency of engine test bench operations. The system was showcased for the first time at the this year’s Automotive Testing Expo in Stuttgart. The visiting vehicle manufacturers and component suppliers, were impressed with the self-docking and self-centering fixture. It consists of 2 standard components - a transverse pin and a sleeve which are both straighttoothed. Rigging only involves the mounting of the matching coupling with the pin to the engine. Given that this work is performed outside the test bench area, the rigging times are minimized in the test cell. This fixture allows for preparing other engines to be tested while one engine still undergoes testing. The basis is a correctly positioned, solid support on which a CV-jointed sleeve is placed. While the engine with the mounted coupling and the toothed pin is approaching its destination, the sleeve is lifted and turned until the toothed components come into mesh. All toothed shaft components come into mesh in any turning position to maintain a good balanced condition. Low-friction ball bearings increase energy efficiency Low-friction ball bearings in the drive system increases energy efficiency and reduces operational noise and heat generation, which in turn helps to extend the service life. Based on optimized raceway geometry and special sealing concepts, NSK has developed several series of ball bearings that offer significantly lower friction characteristics. The new bearings feature a proprietary geometry that reduces the contact surface between the balls and raceways. Its fiber-glass-reinforced polyamide cages and high-performance lubricants contribute significantly to lowering the frictional torque. Its production process is another important factor, since any roughness in the bearing raceway is likely to impair lubrication, increase running noise and generate greater friction. Therefore, the raceways of NSK ball bearings undergo a bespoke honing process that is designed to deliver an extremely smooth running surface. In regards to seal technology, the non-contact labyrinth design developed and patented by NSK ensures efficient sealing properties without increasing frictional torque or operating temperature. This is vitally important in applications where any loss of performance is deemed to be particularly detrimental. POWERING GLOBAL INDUSTRY Megadyne.indd 1 09.08.2017 10:43:21 WORLD OF INDUSTRIESMOTION, DRIVE & AUTOMATION 5/2017