Product Description
Rexnord Wrapflex Elastomeric Couplings are non lubricated, material-flexing couplings, which are used in a variety of applications in many industries.
They have excellent vibration dampening capability and high-misalignment capacity, providing extended life to connected equipment. The couplings offer a replace-in-place design for quick installation and replacement.
ZheJiang shine transmission machinery Co., Ltd is specialized in manufacturing and selling transmission products. Our products are exported to the world famous machinery company in Europe, America, South Africa, Australia, southeast Asia etc.
Our main products include: European pulley, American pulley, couplings, taper bushing, qd bush, lock element, adjustable motor base, motor rail, sprockets, chain, bolt on hubs, weld on hubs, jaw crusher equipment & spare parts and all kinds of non-standard Casting products etc.
The good quality of our products is demonstrated in various machinery equipment. For example, mining equipment, grain equipment, fan, air compressor, vacuum pump, woodworking machinery, papermaking machinery, mixing equipment etc.
Our slogan is”qualified products win customers, good service benefits customers”. By establishing a closer cooperation with old and new clients, We’ Ll be able to guarantee a CHINAMFG situation develop and progress together.
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Elastomeric Couplings and Handling Torque Spikes and Sudden Load Changes
Elastomeric couplings are designed to handle torque spikes and sudden changes in load, thanks to the inherent flexibility and damping properties of the elastomeric material. Here’s how they manage such scenarios:
1. Damping Effect:
When a sudden increase in torque or load occurs in the machinery, the elastomeric coupling’s flexible element acts as a buffer, absorbing and dissipating the excess energy. This damping effect helps prevent the transmission of shock loads to the connected equipment, reducing the risk of damage.
2. Torsional Compliance:
Elastomeric couplings have a certain level of torsional compliance, which allows them to tolerate brief torque spikes without transmitting excessive forces to the connected shafts. This torsional compliance is essential in applications where sudden load changes are common.
3. Misalignment Compensation:
Elastomeric couplings can accommodate some degree of misalignment between the shafts. When torque spikes or sudden loads lead to minor misalignments, the coupling can flex and compensate for these changes, reducing the stress on the machinery.
4. Vibration Absorption:
If torque spikes or sudden loads result in torsional vibrations, the elastomeric material can absorb and dampen these vibrations, preventing them from propagating through the system and causing additional damage.
5. Material Selection:
The selection of appropriate elastomeric materials and coupling design factors in the anticipated torque and load requirements. Couplings can be designed to handle specific torque spikes and loads based on the elastomer’s hardness and properties.
Despite their ability to handle torque spikes and sudden load changes, it is essential to consider the specific application requirements when choosing an elastomeric coupling. Factors such as the magnitude and frequency of torque spikes, load characteristics, and operating conditions must be taken into account to ensure the coupling’s compatibility and reliability.
Properly selected and maintained elastomeric couplings provide effective torque transmission and help protect connected equipment from the impact of sudden changes in load, contributing to the overall efficiency and longevity of the machinery.
Standard Specifications and Industry Norms for Elastomeric Couplings
Yes, there are standard specifications and industry norms that govern the design, manufacturing, and performance of elastomeric couplings. These standards ensure that elastomeric couplings meet specific criteria for quality, reliability, and safety. Some of the widely recognized standards and norms for elastomeric couplings include:
1. American National Standards Institute (ANSI):
ANSI provides standards and guidelines for elastomeric couplings used in various industrial applications. ANSI standards cover design considerations, dimensions, materials, torque ratings, and performance testing for elastomeric couplings.
2. International Organization for Standardization (ISO):
ISO develops international standards for elastomeric couplings, ensuring consistency and interoperability across different regions and industries. ISO standards cover coupling performance, dimensions, and testing methods.
3. American Society of Mechanical Engineers (ASME):
ASME standards include guidelines for elastomeric couplings, providing information on design, installation, maintenance, and inspection practices to ensure safe and reliable operation.
4. American Gear Manufacturers Association (AGMA):
AGMA publishes standards related to elastomeric couplings used in power transmission systems. These standards cover coupling design, selection, application, and maintenance guidelines.
5. European Committee for Standardization (CEN):
CEN develops European standards for elastomeric couplings to promote uniformity and compliance across European countries.
Manufacturers often use these standards as a reference when designing and testing elastomeric couplings. Compliance with these standards helps ensure that the couplings meet minimum quality and performance requirements. Additionally, many industries have specific regulations and norms related to safety, which elastomeric couplings must adhere to when used in their applications.
When selecting an elastomeric coupling, it is essential to verify if it complies with the relevant standards and industry norms to guarantee its suitability and safety for your specific application. Manufacturers typically provide documentation stating the compliance of their couplings with the applicable standards.
What is Elastomeric Coupling and How Does It Work in Mechanical Systems?
An elastomeric coupling is a type of flexible shaft coupling that uses an elastomeric material, typically rubber or polyurethane, to connect two shafts and transmit torque between them. The primary purpose of elastomeric couplings is to compensate for misalignments between the shafts while dampening vibrations and shocks in mechanical systems.
Construction and Working Principle:
Most elastomeric couplings consist of two hubs with a flexible element in between. The flexible element is made of high-quality elastomeric material, which is molded or bonded to the hubs. The elastomeric material is designed to be both torsionally flexible and durable.
When torque is applied to one shaft, the flexible element deforms and absorbs the misalignment between the shafts, allowing the coupling to compensate for angular, parallel, and axial misalignments. This flexibility is crucial for preventing undue stress on the connected equipment and increasing the coupling’s lifespan.
Key Features and Advantages:
1. Misalignment Compensation: Elastomeric couplings can handle small degrees of misalignment, making them suitable for applications where precise alignment is challenging or subject to change over time.
2. Vibration Dampening: The elastomeric material absorbs vibrations and shocks, resulting in reduced noise and improved smoothness of operation.
3. Fail-Safe Design: Elastomeric couplings have a fail-safe design, where if the elastomeric element were to fail, the coupling could still transmit torque without completely breaking down.
4. Simple and Economical: Elastomeric couplings are relatively simple in design, easy to install, and cost-effective compared to some other coupling types.
5. Maintenance-Free: In general, elastomeric couplings require minimal maintenance, making them a popular choice in various industries.
Applications:
Elastomeric couplings find applications in a wide range of industries and mechanical systems, including:
- Pumps and compressors
- Conveyor systems
- Machine tools
- Material handling equipment
- Blowers and fans
- General power transmission systems
Overall, elastomeric couplings are valued for their flexibility, shock absorption, and misalignment compensation capabilities, making them a reliable choice for transmitting torque while protecting connected equipment from harmful effects of misalignments and vibrations.
editor by CX 2024-04-11