Product Description

CE ISO Approved Cast Iron NM CHINAMFG Compressor Motor Hydraulic Pump Connector Flexible Jaw Elastomer HRC Spider Rubber Rigid Shaft Coupling with Flange

Product Description

 

 

NM flexible shaft coupling is a cylindrical pin made of some non-metallic materials, which is placed between the 2 sides of the coupling and the inner surface of the outer ring, and a device to transfer the torque through the column pin to realize the connection between 2 half couplings. NM flexible shaft coupling between the slider made of bakelite cloth or polyurethane, suitable for high speed, large torque, no sharp impact of the 2 connections.

Product brand: EVER-POWER

Name of transmission part: water pump coupling

Product structure: it is composed of 2 cast iron claws and a natural rubber inner ring

Suitable shaft diameter: 7mm-75mm

Suitable motor power: within 60hp / 45KW

Product features:

1. The maximum torque is 125kgm 2. Stable operation and low noise 3. The product is made of cast iron and cast by precision die casting, so it is not easy to cause fracture during operation
 

 

 

Product introduction
NM elastic claw coupling is also called claw coupling. The structure is similar to the elastic plum CHINAMFG coupling, which is made of specially designed synthetic rubber. The coupling consists of 2 cast iron (FC25 material) bodies and rubber. It is a connecting part between the pump and the motor, and is often used in general machinery.
Product features
It is economical, practical, quiet and stable, easy to assemble and maintain, and can provide high torque and intermittent operation for equipment. The coupling body is made of high-grade cast iron, and the rubber is made of NBR, which has excellent oil resistance, performance and TM; ACM is equivalent to fluororubber, and its working temperature is – 40~+120 ºC.
Product application
NM elastic coupling is widely used in supporting equipment of machinery industry, such as ceramic machinery, chemical machinery, woodworking machinery, plastic machinery, textile machinery, construction machinery, stainless steel machinery, auto parts industry, mechanical transmission, motor equipment, and paper products machinery industry.
 

Related products:

 

Company Profile

Ever power is a modern enterprise integrating research and development, design, manufacturing, sales and service. The company is a professional manufacturer of equipment integrating hydraulic transmission and mechanical transmission, providing multiple series of power transmission system solutions. The revolutionary innovation of our company – hub hydraulic connection technology is leading a product revolution that requires hub connection, such as expanding sleeve, coupling, bearing, etc., because of its compact structure, rapid installation, easy positioning, small runout, no damage to the joint surface and easy disassembly and assembly. The main products are hydraulic expansion sleeves, hydraulic coil spring couplings, hydraulic drum gear couplings, and various mechanical couplings. The company’s products are oriented to the global mining, chemical, steel, power, cement, metallurgy, port machinery, shipping, paper making, special pump industry and other fields. Adhering to the enterprise development concept of “people-oriented” and the quality policy of “excellence, endless, dedicated service and customer satisfaction”, the company is constantly moving towards the direction of globalization, modernization, youth and standardization of enterprise development!

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

View More

Materials Used in Manufacturing Flexible Flange Couplings and Their Impact on Performance

Flexible flange couplings are commonly manufactured using various materials, each offering specific properties that can impact their performance in mechanical power transmission systems. The choice of material depends on factors such as application requirements, operating conditions, torque and speed demands, and environmental considerations. Some of the commonly used materials and their impact on performance are as follows:

1. Elastomeric Materials (Rubber, Polyurethane, etc.): Elastomeric materials like rubber and polyurethane are widely used in flexible flange couplings. These materials provide excellent flexibility, which allows them to handle misalignment and dampen vibrations effectively. They can also absorb shocks and reduce transmission of torsional vibrations between shafts, contributing to smoother operation and reduced wear on connected machinery. However, elastomeric couplings may have limitations in high-temperature or aggressive chemical environments.
2. Metal Alloys (Steel, Stainless Steel, etc.): Metal alloys, such as steel and stainless steel, are preferred when higher torque and load-carrying capacities are required. They offer superior strength and durability, making them suitable for heavy-duty applications. Stainless steel is particularly resistant to corrosion and is often used in harsh or corrosive environments. Metal couplings may not provide as much flexibility as elastomeric ones, but they compensate with higher torque transmission capabilities and increased reliability.
3. Composite Materials (Fiberglass, Carbon Fiber, etc.): Composite materials are gaining popularity in various industries due to their unique combination of properties. They can offer a balance of flexibility and strength, making them suitable for applications where both misalignment accommodation and high torque transmission are necessary. Composite couplings are often lightweight, which can be advantageous for reducing the overall weight of rotating systems.
4. Plastics (Nylon, Delrin, etc.): Plastics are sometimes used in less demanding applications where cost-effectiveness and low friction are essential. While they may not provide the same level of performance as elastomeric or metal couplings, they can still serve adequately in specific settings with lower torque and speed requirements.

The choice of material for flexible flange couplings must consider factors such as application-specific needs, environmental conditions, temperature range, chemical exposure, and maintenance requirements. It is essential to select a coupling material that matches the demands of the application to ensure optimal performance, longevity, and reliability.

Comparison of Flexible Flange Couplings with Other Coupling Types

Flexible flange couplings, elastomeric couplings, and beam couplings are all popular choices for transmitting torque and accommodating misalignment in mechanical systems. Each type has its unique features and advantages, making them suitable for various applications. Here’s a comparison of flexible flange couplings with elastomeric and beam couplings:

1. Flexible Flange Couplings:
   • Design: Flexible flange couplings consist of two flanges with flexible elements (often rubber or polyurethane) connecting them. The flexibility of the coupling allows it to accommodate angular, axial, and parallel misalignments.
   • Misalignment Compensation: Flexible flange couplings can handle moderate to high levels of misalignment, making them suitable for applications where misalignment is expected.
   • Torque Capacity: They generally have a high torque capacity, making them suitable for high-power applications.
   • Backlash: Flexible flange couplings can have minimal backlash, ensuring accurate and precise motion transfer.
   • Performance: They provide damping of vibrations, reducing resonance in the system and minimizing wear on connected components.
   • Installation: Flexible flange couplings are relatively easy to install and require minimal maintenance.
   • Applications: They are commonly used in industrial machinery, power transmission systems, and applications with moderate to high misalignment requirements.
2. Elastomeric Couplings:
   • Design: Elastomeric couplings use an elastomer (rubber) element to connect two hubs. The elastomer provides flexibility for misalignment compensation.
   • Misalignment Compensation: Elastomeric couplings can handle angular and parallel misalignments but have limited axial misalignment capabilities.
   • Torque Capacity: They have a moderate torque capacity and are suitable for applications with lower torque requirements.
   • Backlash: Elastomeric couplings can have some level of backlash, which may impact precision in certain applications.
   • Performance: They provide damping of vibrations and shock absorption, protecting connected components from damage.
   • Installation: Elastomeric couplings are easy to install and require minimal maintenance.
   • Applications: They are commonly used in pumps, compressors, and applications where dampening of vibrations is crucial.
3. Beam Couplings:
   • Design: Beam couplings consist of a single piece of material with spiral cuts that provide flexibility for misalignment compensation.
   • Misalignment Compensation: Beam couplings can handle angular misalignment but have limited capabilities for parallel misalignment.
   • Torque Capacity: They have a moderate torque capacity and are suitable for applications with moderate torque requirements.
   • Backlash: Beam couplings typically have low or zero backlash, making them ideal for applications requiring precise motion transfer.
   • Performance: They offer good torsional stiffness and high torsional strength.
   • Installation: Beam couplings are simple to install and require little maintenance.
   • Applications: They are commonly used in small motors, robotics, and applications with tight space constraints.

Ultimately, the choice between flexible flange couplings, elastomeric couplings, or beam couplings depends on the specific requirements of the application. Factors such as the amount of misalignment, torque capacity, backlash tolerance, and the level of vibration dampening needed will influence the selection process. It’s essential to carefully consider the operating conditions and performance characteristics to ensure the coupling chosen optimally meets the demands of the mechanical system.

Key Design Considerations for Flexible Flange Couplings in Power Transmission Systems

When using flexible flange couplings in power transmission systems, several critical design considerations should be taken into account to ensure optimal performance, reliability, and longevity of the coupling:

• Misalignment Tolerance: One of the primary advantages of flexible flange couplings is their ability to compensate for misalignment between shafts. It is essential to determine the expected magnitude and type of misalignment (angular, parallel, or axial) that the coupling will encounter and select a coupling with appropriate misalignment tolerance.
• Torsional Stiffness: While flexible flange couplings offer some level of compliance to dampen vibrations, excessive torsional flexibility can lead to decreased system stability. Choosing a coupling with the right balance of flexibility and stiffness is crucial for maintaining the desired torsional characteristics.
• Torque Rating: The coupling’s torque rating must match or exceed the maximum torque requirements of the application. It is essential to consider the starting torque, peak torque, and continuous torque to avoid overloading the coupling.
• Speed Rating: The coupling’s speed rating should be suitable for the operating speed of the system. High-speed applications may require couplings designed to withstand higher centrifugal forces.
• Service Environment: Consider the environmental conditions in which the coupling will operate. Factors such as temperature extremes, presence of moisture or chemicals, and exposure to corrosive agents can impact the choice of materials and coatings for the coupling.
• Space Constraints: The available space for the coupling installation may dictate the coupling’s dimensions and design. It is essential to select a compact coupling that fits within the allocated space while maintaining the required performance.
• Material Selection: The choice of material for the flexible element (elastomeric, metallic, or composite) and the flanges should be based on factors such as torque requirements, misalignment compensation, and environmental compatibility.
• Dynamic Balancing: In high-speed applications, dynamic balancing of the coupling can help minimize vibrations and improve the overall system’s reliability and service life.
• Alignment: Although flexible flange couplings can tolerate misalignment, proper initial shaft alignment is still essential to reduce wear and maximize coupling life.
• Load Distribution: Ensure that the coupling distributes the transmitted load evenly between the shafts to prevent localized stress concentration and premature failure.

Conclusion: Selecting the right flexible flange coupling for a power transmission system requires careful consideration of various design parameters. By understanding the application’s requirements and the coupling’s capabilities, engineers can ensure that the coupling will perform optimally and reliably, leading to efficient power transmission and reduced maintenance needs.

editor by CX 2024-03-18