Product Description
Rexnord Viva Thomas Ktr CHINAMFG Poly-Norm Poly Revolex N-Eupex Wrapflex Coupling Elastomer Diaphragm Polyurethane Plum Cushion Shaft Flexible Spider Couplings
Elastomeric Couplings
Rexnord Elastomeric Couplings are ideal for a wide assessment of industries and have been trusted by many of the largest OEM machinery equipment suppliers and end users for over 45 years These non lubricated, material flexible couplings can be used in a variety of environments They provide excellent vibration sampling capacity, high misalignment capacity, reduced maintenance costs and downtime, in addition to special design options for specific applications
Rexnord Viva Elastomeric Couplings
The most advaced elastomeric coupling available
Rexnord Viva Elastomeric Couplings feature a design based on the proven Rexnord CHINAMFG Couplings. Design upgrades to Viva allow for greater torque transmission with a smaller coupling. Incorporating the quality features of Omega, Rexnord Viva Couplings are non-lubricated, material-flexing split-in-half tire couplings. Viva Couplings are built for reliability in a variety of demanding applications including pumps, compressors, blowers, mixers, and more. This all-purpose coupling has excellent vibration damping capability helping to prolong the life of connected equipment.
Viva Close-Coupled Elastomeric Couplings
Viva close-coupled (V) elastomeric coupling consists of the unique split-in-half flex element and reversible hubs.
- Supplied with metric fasteners
- Hubs offered in rough bore, custom bore, and bushed designs
- Connects equipment with shaft gap (distance between shaft end) up to 5.2″ (132mm)
- Accommodates shaft diameters up to 6.5″ (165 mm)
- Continuous torque loads up to 55,494 lb-in (6,270 Nm)
- Available in 12 sizes ranging from 110 through 460
Viva Spacer Elastomeric Couplings
Viva spacer (VS) elastomeric coupling features a split-in-half flex element and reversible hubs with optional hole mounting positions.
- Supplied with metric fasteners
- Hubs offered in rough bore, custom bore, and bushed designs
- Connects equipment with shaft gap (distance between shaft end) up to 9.8″ (250mm)
- Accommodates shaft diameters up to 6.5″ (165 mm)
- Continuous torque loads up to 55,494 lb-in (6,270 Nm)
- Available in 12 sizes ranging from VS110 through VS460
Rexnord CHINAMFG Elastomeric Couplings
Recognized as the benchmark in the industry
Rexnord CHINAMFG Elastomeric Couplings are non-lubricated, material-flexing split-in-half tire couplings, which are used in a variety of demanding applications in many industries. This all-purpose coupling has excellent vibration damping capability helping to provide extended life to connected equipment. This coupling offers easy installation and a wide range of shaft gaps.
Omega Elastomeric Couplings
Split-in-half design offering easy installation for general purpose applications.
Viva Elastomeric Couplings
Split-in-half design offering easy installation and greater torque with a smaller coupling that accepts larger bores
Wrapflex Elastomeric Couplings
A replace-in-place designed coupling for quick installation and replacement.
Elastomeric Parts & Kits
Components for Omega, Viva and Wrapflex flexible couplings comprised of shaft hubs, spacer hubs, flexible elements, element covers, sub-assemblies, and fastener kits.
ROTEX couplings
ROTEX – torsionally flexible jaw coupling
ROTEX torsionally flexible claw couplings are characterized by their compact design. ROTEX elastomer couplings are used in almost all areas of general mechanical and plant engineering.
ROTEX GS – Backlash-free servo coupling
The ROTEX GS is a three-part, backlash-free servo coupling under preload. The various hub designs and different shore hardnesses result in the optimum coupling for every application in automation technology.
POLY-NORM torsionally flexible, fail-safe shaft couplings
POLY-NORM shaft couplings are characterized by a compact design. The torque is transmitted via elastomers between the cams also serving to offset displacements and dampen shocks and torsional vibrations.
Applications of our torsionally flexible, fail-safe shaft couplings:
POLY-NORM shaft couplings are used in almost all fields of mechanical engineering, here mainly in the pump industry (pump coupling).
Advantages
- Torsionally flexible shaft couplings (pump coupling / E4 coupling)
- Axial plug-in, easy assembly
- Fail-safe
- Compact, short shaft distance dimension
- Torques up to 5,500 kNm
- Vibration-damping
- Compensation of displacements
- Various options of bores
Attributes
- High quality
- Various applications
- Very suitable for short installation lengths
- Available from stock
This KTR POLY-NORM coupling is a torsionally-flexible, shear type shaft coupling. It has an axial plug-in design with a unique short overall length. The POLY-NORM can be used in nearly all types of machinery and is ideal for the pump industry.
KTR POLY-NORM AR shear type shaft coupling
This KTR POLY-NORM coupling is a torsionally-flexible, shear type shaft coupling. It has an axial plug-in design with a unique short overall length. The POLY-NORM can be used in nearly all types of machinery and is ideal for the pump industry.
- 2-pieces shaft coupling for torque transmission and damping of torsional vibrations
- Axial plug-in, easy assembly
- Maintenance-free
- Short-constructing, small dimension of shaft distance
- Use in general machinery
More than shaft couplings
Due to our large assortment, there is almost always a product that is suitable for your applications. We not only supply drive components, but also all the other products needed to achieve an optimal process. In our stockpile we have, for example, various types of transport components, hydraulic components, oil coolers and our own monitoring system
Why an elastic coupling of Bestseal?
An elastic coupling from Bestseal is the result of decades of product development and innovation. With this, we assure you of a high-quality component with the highest possible reliability. We see ourselves as the reliable partner of anyone who wants to set things in motion.
More than 2,000 employees work passionately every day to provide you, the customer, with the best conceivable products. DIN ISO certifications are the best proof of this. A transparent and honest way of working lies at the basis of every customer relationship with us.
Would you like to learn more about our elastic couplings or answer an important product question?
Please contact our technical support department or sales department and let us inform you in detail about the various possibilities.
We will be happy to think along with you based on your wishes and make you a custom offer without any obligation.
we specialized in the development and production of sealing systems which were used in the Metallurgical,Electrical,Auto, Engineering machinery, Light industrial machinery and Electrical appliance manufacturing industries. BESEALS focus on customers’ needs,as a dependable partner and reliable supplier to help you resolve supply or technical problems ,and improve the performance of your equipments or your business. When you are facing emergency repairs situation or urgent orders,the highly responsive team of DLseals will offer you very short lead time. Beseals has a global sales network,and our seals have been sold to more than 100 countries or areas ,Such as America, England, Canada, Australia, Russian Federation ect .
FAQ
1. who are we? Are you trading company or manufacturer ?
We are manufacturer.We are based in HangZhou, China, start from 2571,sell to Domestic Market(33.00%),North America(15.00%),South America(10.00%),Western Europe(8.00%),Eastern Europe(6.00%),Souther Europe(6.00%),Southeast Asia(5.00%),Mid East(5.00%),Northern Europe(5.00%),Oceania(2.00%),South Asia(2.00%),Africa(00.00%),Eastern Asia(00.00%),Central America(00.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;
3.what can you buy from us?
PTFE Seals/Oil Seals/O Rings/Rubber Seals/Plastic Seals/Mechanical Seal/O-RING/ RING Seals.
4. why should you buy from us not from other suppliers?
Beseals is a professional manufacturer of seals .Our company specializes in the production of PU, PTFE, rubber and metal sealing components
5. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
6.Do you provide samples ?
is it free or extra ? Yes, we could offer the sample for free charge but you need to pay the cost of freight.
7. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,PayPal,Western Union,Escrow; Language
Spoken:English,Chinese,Japanese
For more information, please contact us. We look CHINAMFG to your arrival
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Safety Considerations When Using Diaphragm Couplings in Critical Applications
When using diaphragm couplings in critical applications, certain safety considerations are essential to ensure reliable and safe operation. Here are some important safety considerations:
- Proper Installation:
- Regular Inspections:
- Monitoring Temperature and Torque:
- Environment Compatibility:
- Redundancy and Backup Systems:
- Compliance with Industry Standards:
- Operator Training:
- Emergency Shutdown Procedures:
Ensure that the diaphragm coupling is installed correctly, following the manufacturer’s guidelines and recommended torque values for fasteners. Improper installation can lead to misalignment, excessive vibrations, and premature wear of the coupling components.
Perform regular inspections of the diaphragm coupling to check for signs of wear, fatigue, or damage. Regular maintenance helps identify potential issues early, allowing for timely replacement and preventing unexpected failures.
In critical applications, it’s crucial to monitor the temperature and torque levels of the diaphragm coupling during operation. Excessive heat or torque can lead to coupling failure, so having monitoring systems in place helps detect abnormal conditions and take necessary actions promptly.
Consider the operating environment of the diaphragm coupling. In corrosive environments, use materials that are resistant to chemical attacks, and in high-temperature settings, choose materials that can withstand elevated temperatures without compromising performance.
In critical applications, consider implementing redundancy or backup systems to ensure continued operation in the event of a failure. Having redundant couplings or alternative power transmission methods can enhance the overall reliability of the system.
Adhere to relevant industry standards and guidelines when selecting and using diaphragm couplings in critical applications. These standards ensure that the coupling meets specific safety and performance requirements.
Ensure that operators and maintenance personnel receive proper training on the installation, operation, and maintenance of the diaphragm coupling. Well-trained personnel can identify potential issues and take appropriate actions to maintain safe operation.
Establish clear emergency shutdown procedures to stop the machinery quickly in case of any abnormality or unsafe condition related to the diaphragm coupling. Emergency shutdown procedures are crucial for protecting personnel and equipment from harm.
By considering these safety considerations and implementing appropriate measures, diaphragm couplings can be used with confidence in critical applications, ensuring safe and reliable operation in various industries and systems.
Real-World Case Studies of Diaphragm Couplings in Engineering Projects
Diaphragm couplings have been successfully utilized in various engineering projects, providing reliable power transmission and addressing specific challenges faced by different industries. Here are some real-world case studies and success stories showcasing the effectiveness of diaphragm couplings:
- Case Study 1: Pumping System in Wastewater Treatment Plant
- Case Study 2: Turbine-Generator Coupling in Power Plant
- Case Study 3: Industrial Compressor System
In a wastewater treatment plant, a critical pumping system was experiencing frequent breakdowns due to misalignment issues and vibration-related failures. The plant engineers decided to replace the existing gear couplings with diaphragm couplings to address these problems. The diaphragm couplings’ flexibility allowed them to compensate for the misalignment caused by thermal expansion and pump impeller wear. Additionally, the couplings’ ability to dampen vibrations reduced stress on the pump bearings, resulting in extended maintenance intervals and increased overall system reliability. The successful implementation of diaphragm couplings in this project led to significant cost savings by minimizing downtime and reducing the need for frequent maintenance.
In a power generation plant, a large gas turbine-generator coupling required replacement due to excessive wear and fatigue-related failures in the previous coupling. The plant engineers opted for a high-performance diaphragm coupling with improved fatigue resistance and higher torque capacity. The flexibility of the diaphragm coupling allowed it to accommodate slight misalignments between the turbine and the generator during operation. This capability reduced the stress on the coupling and mitigated the risk of premature failure. The diaphragm coupling’s ability to handle torsional vibrations and dampen mechanical resonance further improved the overall reliability and performance of the turbine-generator system, resulting in increased power generation efficiency and reduced maintenance costs.
In an industrial compressor application, the existing coupling experienced frequent failures due to misalignment and shock loads from varying compression demands. The plant engineers replaced the old coupling with a diaphragm coupling featuring high misalignment tolerance and excellent shock absorption properties. The diaphragm coupling’s flexibility effectively compensated for the misalignment between the compressor and the motor, resulting in smoother operation and reduced stress on the drive components. Additionally, the coupling’s ability to absorb sudden shock loads reduced the risk of equipment damage and minimized unplanned downtime. The successful implementation of the diaphragm coupling significantly improved the compressor system’s reliability and contributed to increased productivity in the industrial facility.
These case studies demonstrate the successful application of diaphragm couplings in diverse engineering projects, including wastewater treatment plants, power generation facilities, and industrial compressors. The flexibility, misalignment compensation, and vibration dampening properties of diaphragm couplings have proven to be valuable in addressing specific challenges and enhancing the performance and reliability of critical machinery in various industries.
How Do Diaphragm Couplings Handle Misalignment Between Shafts and Reduce Vibrations?
Diaphragm couplings are designed to handle misalignment between shafts and reduce vibrations effectively. Here’s how they achieve these functionalities:
- Misalignment Handling: Diaphragm couplings can accommodate three types of misalignment: angular, parallel, and axial misalignment.
- Angular Misalignment: When the shafts are not perfectly aligned and have angular offset, the flexible diaphragm in the coupling can flex and bend, allowing for relative movement between the shafts without transmitting excessive torque loads or inducing stress on the machinery.
- Parallel Misalignment: In cases where the shafts have parallel misalignment (i.e., horizontal offset), the diaphragm can also flex and move laterally to accommodate the misalignment while maintaining a continuous connection between the two hubs.
- Axial Misalignment: Diaphragm couplings can also handle axial misalignment (i.e., axial displacement), as the flexible diaphragm can compress or elongate slightly to adjust for the axial movement of the shafts.
- Vibration Reduction: Diaphragm couplings are known for their ability to dampen vibrations, which helps in reducing vibration levels in the connected machinery and the overall mechanical system.
- Flexible Diaphragm: The key component that enables vibration reduction is the flexible diaphragm. As the diaphragm flexes in response to misalignment or torque loads, it absorbs and dissipates vibrations, preventing them from being transmitted through the coupling and into the system.
- Natural Frequency: The design of the diaphragm is tuned to have a specific natural frequency, which allows it to effectively dampen and attenuate vibrations within the desired range.
- Material Selection: The choice of material for the diaphragm is crucial in determining its vibration damping capabilities. Certain materials have better vibration-absorbing properties, making them ideal for use in diaphragm couplings.
In summary, diaphragm couplings handle misalignment between shafts by using the flexible diaphragm to accommodate angular, parallel, and axial misalignment. Additionally, they reduce vibrations by utilizing the same flexible diaphragm to dampen and absorb vibrations, enhancing the smooth operation and longevity of the connected machinery and mechanical systems.
editor by CX 2024-04-30