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SKF Couplings

SKF Couplings
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® SKF is a registered trademark of the SKF Group. Hytrel is a registered trademark of DuPont. © SKF Group 2018 The contents of this publication are the copyright of the publisher and may not be reproduced (even extracts) unless prior written permission is granted. Every care has been taken to ensure the accuracy of the information contained in this publication but no liability can be accepted for any loss or damage whether direct, indirect or consequential arising out of the use of the information contained herein. PUB PT/P1 15822/2 EN · Janurary 2018 This publication supersedes...

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Contents SKF – the knowledge engineering company. . . . . . . . . . . . . . . . . . . . . . 4 SKF Couplings. . . . . . . . . . . . . . . . . . 6 Coupling selection guide. . . . . . . . . . . 7 Selection parameters for SKF shaft couplings. . . . . . . . . . . . . . . . . . . . . . 8 SKF Grid Couplings . . . . . . . . . . . . . 10 Selection . . . . . . . . . . . . . . . . . . . . . . 10 Engineering data. . . . . . . . . . . . . . . . 13 Order data. . . . . . . . . . . . . . . . . . . . . 13 Installation. . . . . . . . . . . . . . . . . . . . . 16 Product tables Horizontal split cover. . . . ....

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SKF – the knowledge engineering company From one simple but inspired solution to a misalignment problem in a textile mill in Sweden, and fifteen employees in 1907, SKF has grown to become a global industrial knowledge leader. Over the years, we have built on our expertise in bearings, extending it to seals, mechatronics, services and lubrication systems. Our knowledge network includes 46 000 employees, 15 000 distributor partners, offices in more than 130 countries, and a growing number of SKF Solution Factory sites around the world. Research and development Meeting the toughest challenges...

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Innovative solutions Whether the application is linear or rotary or a combination, SKF engineers can work with you at each stage of the asset life cycle to improve machine performance by looking at the entire application. This approach doesn’t just focus on individual components like bearings or seals. It looks at the whole application to see how each component interacts with each other. Spec ific Our objective is to help our customers improve productivity, minimize maintenance, achieve higher energy and resource efficiency, and optimize designs for long service life and reliability. SKF...

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SKF Couplings Flexible couplings are devices used to mechanically connect two shafts to transmit power from one shaft to the other. They are also able to compensate for shaft misalignment in a torsionally rigid way. Misalignment can be angular, parallel or skew. This is particularly important for applications where misalignment could affect the velocity and acceleration of the driven shaft. The performance of the coupling depends largely upon how it is installed, aligned and maintained. In response to industry's ultimate need to produce more with less, SKF has combined its knowledge and...

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Coupling selection guide Introduction There is an extensive range of couplings available on the market today. Unsurprisingly, selecting the best coupling for a particular application can be a complicated matter. A coupling can be simply defined as “a device that transmits power (torque) from one shaft to another, while allowing some degree of misalignment (angular, parallel or combined) between the two rotating shafts”. In addition to the above definition, some couplings allow for axial (end-float) movement . Also, couplings may be classified as either flexible or rigid. Depending on its...

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Selection parameters for SKF shaft couplings The following table shows typical characteristics for various coupling types. To be used in determining which coupling type or style may be best suited for an application. General notes: The preceding table is a general comparison of the SKF range of couplings. The values, where shown, are based on the best or highest value and may not represent the entire size range. Check the catalogue for details, especially if using different elastomer materials, as these can change not only temperature range and chemical resistance, but may also affect the...

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Table 1 SKF designation/name selection criteria General type/family Temperature range († note 4) Min. Speed capability Torsional stiffness (Low/Medium/ High) Ease of installation/ maintenance Chemical resistance († note 5) Adaptability in design († note 6) Shock load capability 1 = poor – 5 = excellent Very good Very good Taper grid Very good Laminate disc Universal joint Universal joint Limited by angle offset ES-Flex (USA only) († note 7) Very good 10 Disc coupling misalignment For the single configuration disc couplings, parallel offset is not permissible. • When using double disc pack,...

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SKF Grid Couplings In high output (kW) and high torque applications where vibration, shock loads and misalignment occur, SKF Grid Couplings are an excellent choice. The unique design of the grid and hub teeth enable these couplings to accommodate movement and stresses from all three planes, which can reduce vibration levels by as much as 30%. The tapered grid element is manufactured from a high strength alloy steel. The grid, which, is the primary wear component of the coupling is designed for quick and easy replacement. Unlike other couplings, the hubs and other components are not...

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2 Service factor Determine the service factor from tables 9 to 10 on pages 87 to 88. 3 Coupling rating Determine the required minimum coupling rating as shown below: Coupling rating = service factor ¥ torque [Nm] 4 Size Select the appropriate coupling from the torque column of the product tables on pages 18 to 22 with a value that is equal to or greater than that determined in step 3 above and check that the chosen coupling can accommodate both driving and driven shafts. 5 Other considerations Possible other restrictions might be speed [r/min], bore, gap and dimensions. Standard selection...

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