Tyre Coupling: The Benefits of Choosing Fenner Brand Fenaflex&#; Tyre Couplings for Your Application

July 7, / Couplings

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When it comes to power transmission, selecting the right coupling for your application is crucial for ensuring smooth and efficient machinery operation. Among the various coupling types available, Fenner Brand Tyre Couplings stand out as a reliable and superior choice. In this article, we will explore the exceptional benefits of choosing Fenner Brand Tyre Couplings for your specific application.

The Advantages of Fenner Brand Tyre Couplings:

Fenner has been a leading name in power transmission for over 150 years. Fenner&#;s Tyre Coupling is known as Fenaflex&#;. Fenaflex&#; offer a wide range of advantages that make them a preferred choice in industrial applications. Here are the key benefits of choosing Fenaflex&#;:

1. 1. Unmatched Quality and Durability: Fenner is renowned for manufacturing high-quality and long-lasting products. Fenaflex&#; couplings are engineered with precision using top-grade materials, ensuring exceptional durability and longevity. Fenaflex&#; tyres are available in natural rubber compounds for use in ambient temperatures between &#;50°C and +50°C. The tyres are also available in FRAS (Fire Resistant Anti Static) construction that are ATEX approved for potentially explosive atmospheres. With Fenner, you can trust that your coupling will withstand the rigors of demanding industrial environments.
      
2. Excellent Misalignment Compensation: The special design of Fenaflex&#; couplings allow them to excel at compensating for large misalignments between the driving and driven shafts. This flexibility minimizes stress on the connected machinery, reducing wear and tear and extending the operational life of your equipment. By absorbing misalignments, Fenner couplings ensure reliable power transmission and enhance overall system reliability.
3. Superior Vibration Dampening: The rubber or polyurethane element in Fenaflex&#; couplings acts as a torsional spring, effectively dampening shocks and vibrations during machinery operation. This feature helps minimize noise levels, improve operator comfort, and enhance the performance of your connected equipment. Fenaflex&#; couplings ensure a smooth and quiet operation, contributing to a safer and more productive work environment.
4. High Torque Transmission: Fenaflex&#; Couplings are designed to handle high torque loads efficiently. Their robust construction and flexible element enable them to transmit power reliably, even in heavy-duty applications. On top of that, the internal load carrying cords are wound in both directions, allowing forward and reverse drives. With this coupling, you can be confident in their ability to handle demanding torque requirements while maintaining their exceptional flexibility and reliability.
5. Easy installation and Fuss-free replacement: The Fenaflex&#; tyre coupling is one of the easiest coupling to install and maintain. Unlike many other couplings, the Fenaflex&#; coupling takes only minutes for replacement as you only need to replace the tyre element! This replacement requires neither special tools nor skilled labour. This simple time-saving installation also ensures that motor and machine remain undisturbed whilst tyre is changed. Watch this video to see how simple it is to install a Fenaflex&#; tyre coupling.
6. Maintenance-Free Operation: Fenaflex&#; Couplings are lubrication-free. Their superior design and use of high-quality materials ensure long-lasting performance with minimal maintenance requirements.

 

In addition to the remarkable benefits of Fenner Brand Tyre Couplings, it&#;s important to note that at Shafttech, we take pride in keeping a comprehensive stock of Fenner couplings readily available. As a trusted distributor, we understand the importance of prompt access to high-quality products for our customers&#; convenience. Whether you have specific inquiries or are ready to make a purchase, our team is dedicated to providing exceptional customer service. Don&#;t hesitate to contact us to inquire about Fenaflex&#; Tyre Couplings or to place an order. We are here to assist you in finding the perfect coupling solution for your application.

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Tyre couplings are used in many sectors where transmission from a motor to the connected machine is needed. Iron and steel industry, shipbuilding, compressors, mining industry, paper manufacturing machinery, cement manufacturing installations, pump installations, electrical power generators and hoisting applications for instance.Link to full technical specification catalogue

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Additional torsionally soft, highly flexible couplings for mechanical power transmission are the ELPEX® and the ELPEX-S® series

ELPEX®

ELPEX® couplings are highly torsionally flexible and free of torsional backlash. Because of their low torsional stiffness and damping capacity, ELPEX couplings are especially suitable for coupling machines with a very non-uniform torque pattern. ELPEX couplings are also suitable for connecting machines with high shaft misalignment. Standard ELPEX coupling types are designed as shaft to shaft connections or flange to shaft connections.
Application-related types can be implemented on request.
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The ELPEX® coupling is available in 9 sizes with a nominal torque of between Nm and 90,000 Nm. The coupling is suitable for ambient temperatures of between -40°C and +80°C. The ELPEX coupling is frequently used for high-quality drives which have to guarantee very long service life in harsh operating conditions. Examples of applications are mill drives in the cement industry, marine main and secondary drives or drives on large excavators powered by an electric motor or diesel engine.

Benefits

Like the ELPEX-B® the ELPEX® coupling is suitable for horizontal and vertical mounting positions or mounting at any required angle. The coupling parts can be arranged as required on the shafts to be connected. The split flexible rings can be changed without having to move the coupled machines. The flexible rings are mounted without backlash and give the coupling progressive torsional stiffness, i.e. torsional stiffness increases in proportion to coupling load. The ELPEX coupling is especially suitable for reversing operation or operation with changing directions of load. The coupling is delivered preassembled. The flexible rings are completely assembled. On the type ENG, the coupling halves have to be bolted together after the hub has been mounted. On the type EFG, after mounting the coupling hub, only the outer flange has to be connected to the machine. Outer flanges with different connection dimensions are available for the type EFG. If the flexible rings are irreparably damaged or worn, the metal parts can rotate freely against one another, they are not in contact with one another.

Design and Configurations

The ELPEX coupling's transmission characteristic is determined essentially by the flexible rings. The flexible rings are manufactured from a natural rubber mixture with a multiply fabric lining. The flexible rings are split so that they can be changed without having to move the coupled machines. The flexible rings are fastened to the hub with a clamping ring and to the outer flange with a clamping ring, using pins and bolts. On the EFG type, the outer flange is designed with connection dimensions for connection to e.g. a diesel engine flywheel. On ENG types, the outer flange is fitted to a second hub part, which then enables the shaft to shaft connection.

Fail-safe device of ELPEX coupling

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Types ENGS and EFGS are provided with a fail-safe device. In normal operation the torsion angle of the flexible rings is smaller than the gap between the cams. In normal operation there is no metal to metal contact. If the flexible rings fail, cams transmit the torque from the inner part and outer part. These enable the coupling to be used in emergency mode for a short time. This option is frequently required e.g. in the case of marine drives.Link to full technical specification catalogue

ELPEX-S®

Coupling suitable for use in potentially explosive atmospheres.
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Complies with the current ATEX Directive for:
II 2GEx h IICT4 ... T3Gb
XII 2DEx h IIICT120 °C ... 160 °CDb X
I M2 Ex hMb X
(Type EST is not available in Ex version.)
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ELPEX-S couplings are highly torsionally flexible and because of their low torsional stiffness and damping capacity are especially suitable for coupling machines with a highly non uniform torque pattern. Standard ELPEX-S coupling types are designed as flange to shaft connections or shaft to shaft connections. Application-related types can be implemented on request.

The ELPEX-S coupling is available as a catalog standard in 12 sizes with rated torques of between 330 Nm and Nm. The coupling is suitable for ambient temperatures of between -40 °C and +120 °C.The ELPEX-S coupling is frequently used for diesel motor drives or reciprocating compressor drives.

Because the different rubber versions enable the torsional stiffness to be adjusted to meet requirements, the coupling is also suitable for drives which require a specific and preferably pre-calculated torsional vibration behaviour setting.

Benefits

The ELPEX-S® coupling is suitable for horizontal and vertical mounting positions or mounting at any required angle. The coupling parts can be arranged as required on the shafts to be connected. ELPEX-S couplings are especially suitable for reversing operation or operation with changing directions of load. The rubber disk elements are fitted virtually without backlash and give the coupling linear torsional stiffness, i.e. the torsional stiffness remains constant even when the load on the coupling increases. There are 4 different rubber element versions with different grades of torsional stiffness available for each size from stock. On certain types the flexible rings can be changed without having to move the coupled machines. If substantial overload occurs, the rubber disk element of the coupling is irreparably damaged, the coupling throws the load and thus limits the overload for particular operating conditions. The coupling can be inserted and fitted blind e.g. in a bell housing. There are outer flanges with different connection dimensions available for each coupling size.

Design and Configurations

The rubber disk element is vulcanized onto a flange on the inside diameter. The flange can mount e.g. a taper clamping bush or a hub. On its outer diameter the rubber disk element has driving teeth, which are inserted into the outer flange. The torque is transmitted positively between the rubber disk element and the outer flange. In the type for shaft-shaft connection the outer flange is screwed to a flange hub mounted on a machine shaft.

Fail-safe device of ELPEX-S® coupling

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The ELPEX-S coupling can also be designed with a fail-safe device. If the rubber disk element fails, the coupling can continue operating in emergency mode for a short time. This option is frequently required e.g. in the case of marine drives. If the rubber disk element fails, cams transmit the torque from the inner and outer parts of the fail-safe device. In normal operation the torsion angle of the rubber disk element is smaller than the gap between the cams, so there is no metal to metal contact.Link to full technical specification catalogue