China factory Chinese Manafacturer Flexible Cast Iron Nm Coupling with Rubber Element Water Pump Shaft Coupling Nm112 128 148 168 nm couplimg

Product Description

Product Description

Chinese Manafacturer Flexible cast iron NM coupling with Rubber Element water pump Shaft coupling NM 194 214

NM type is precisely produced by a special designed synthetic rubber with 2 similar bodies of cast iron. Cast iron flanges: Designed not only for the power transmission but also for protection of flexible rubber.Flexible rubber Application: pumps, fans, coupressors, vehicles, transporting equipments, constructors, cement mixers, tractors, transmission machines, metal working machines, rollers and all other trasmissions.Made of rubber and steel corres are inserted in the teeth so as to provide excellent durability and performance of coupling.

Use:

Mainly used in the mining, metallurgical, cement, chemicals,construction, buiding materials,

electric power, telecommunictions, textiles, and transportation departments.

Such as:

1. conveyor:Belt conveyor,AFC conveyor, chain conveyor, screw conveyor.

2. Pum:Water pump, oil pump, slush pump, etc.

3.Fan: Draft fan, fanner, boil fan, etc.

4. Excator:bucket excavator bucket, wheel excavators .

5. Crane:Tower crane, gantry crande, bridge crane.

6.Others:Various elevators, coal plough, ball mill, crusher, recreation machine.

7.Blender equipment, centrifuger, washer, leather-making machine, machine for recreation 

   park mixer wire drawing machine.Extruder, dregs crusher of boiler.

8.Plastic feeder, rubber smelling machine, etc.

Detailed Photos

Product Parameters

Model Torque Max. Bore Diam Boss Diam Outsid Diam Length Space&Perm Weight
Nomal Max Speed Min Max D OD L Tolerance (kg)
Kg-m Kg-m (RPM)
NM50 1.3 2.3 12500 7 19 33 50 25 2.0±0.5 0.48
NM67 2.2 4 10000 8 28 46 67 30 2.5±0.5 1.02
NM82 5 9 8000 10 32 53 82 40 3.0±1.0 1.88
NM97 10.5 19 7000 10 42 69 97 50 3.0±1.0 3.54
NM112 16.7 30 6000 14 48 79 112 60 3.5±1.0 5.4
NM128 26.7 48 5000 18 55 90 128 70 3.5±1.0 8.1
NM148 41.7 75 4500 22 65 107 148 80 3.5±1.0 13.5
NM168 69.5 125 4000 28 75 124 168 88 3.5±1.5 19.3
NM194 112 200 3500 32 85 140 198 100 3.5±1.5 26.3
NM214 167 300 3000 40 95 158 218 112 4.0±2.0 35.7

Certifications

Packaging & Shipping

Package:  Standard suitable package / Pallet or container
                  Polybag inside export carton outside, blister and Tape and reel package available.

                  If customers have specific requirements for the packaging, we will gladly accommodate 

Shipping:  10-20 working days ofter payment receipt comfirmed (based on actual quantity)  Packing standard export packing or according to customers demand Professional goods shipping forwarder

 

Company Profile

ZheJiang Mighty Machinery Co., Ltd. specializes in manufacturing Mechanical Power Transmission Products.
We Mighty is the division/branch of SCMC Group, which is a wholly state-owned company, established in 1980.
About Mighty:
-3 manufacturing factories, we have 5 technical staff, our FTY have strong capacity for design and process design, and more than 70 workers and double shift eveyday.
-Large quality of various material purchase and stock in warhouse which ensure the low cost for the material and production in time.
-Strick quality control are apply in the whole prodution. we have incoming inspection,process inspection and final production inspection which can ensure the perfect of the goods quality.
-14 years of machining experience. Long time cooperate with the Global Buyer, make us easy to understand the csutomer and handle the export. MIGHTY’s products are mainly exported to Europe, America and the Middle East market. With the top-ranking management, professional technical support and abundant export experience, MIGHTY has established lasting and stable business partnership with many world famous companies and has got good reputation from CHINAMFG customers in international sales.

Our Advantages

1,More competitive prices,
2,Shorter delivery date: 35 days.
3,We are the professional manufacturer in the field of Power Trans.Parts,specially for Timing Pulleys.
4,Produce standard and non-standard
5,Strict QC Management:ISO9001:2008,our engineer,Mr.Wang has specialized in the prodcution for over 20 years.

FAQ

Q: Are you trading company or manufacturer ?

A: We are factory, also do trading company business. Because our company do export 36years, having our own factories, also cooperated with other many factories.

 

Q:What’s the MOQ?

A:We have not a clear limit,1 or 2pcs is available.

 

Q: How long is your delivery time?

A: 3-5 days via DHL, TNT, UPS, FEDEX. 

Diffirent based on the diffirent countries of customers via CHINAMFG shipping.

 

Q: Do you provide samples ? is it free or extra ?

A:yes,we provide free samples for checking the build quality and real performance of our products,the freight need to be covered by customer.

 

Q: What is your terms of payment ?

A: T/T, Paypal, L/C, D/P, D/A, Western Union, etc., all decided by customer’s requirements.

 

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Standard Or Nonstandard: Standard
Structure: Flexible
Material: Cast Iron
Type: Flexible Coupling
Surface Treatment: Phosphating
Name: Nm Shaft Coupling
Samples:
US$ 18.6/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

China factory Chinese Manafacturer Flexible Cast Iron Nm Coupling with Rubber Element Water Pump Shaft Coupling Nm112 128 148 168  nm couplimg

nm coupling

How does a flexible coupling handle angular, parallel, and axial misalignment?

A flexible coupling is designed to accommodate various types of misalignment between two rotating shafts: angular misalignment, parallel misalignment, and axial misalignment. The flexibility of the coupling allows it to maintain a connection between the shafts while compensating for these misalignment types. Here’s how a flexible coupling handles each type of misalignment:

  • Angular Misalignment: Angular misalignment occurs when the axes of the two shafts are not collinear and form an angle with each other. Flexible couplings can handle angular misalignment by incorporating an element that can flex and bend. One common design is the “spider” or “jaw” element, which consists of elastomeric materials. As the shafts are misaligned, the elastomeric element can deform slightly, allowing the coupling to accommodate the angular offset between the shafts while still transmitting torque.
  • Parallel Misalignment: Parallel misalignment, also known as offset misalignment, occurs when the axes of the two shafts are parallel but not perfectly aligned with each other. Flexible couplings can handle parallel misalignment through the same elastomeric element. The flexible nature of the element enables it to shift and adjust to the offset between the shafts, ensuring continuous power transmission while minimizing additional stresses on the machinery.
  • Axial Misalignment: Axial misalignment, also called end-play misalignment, occurs when the two shafts move closer together or farther apart along their common axis. Flexible couplings can handle axial misalignment through specific designs that allow limited axial movement. For instance, some couplings use slotted holes or a floating member that permits axial displacement while maintaining the connection between the shafts.

By providing the capability to handle angular, parallel, and axial misalignment, flexible couplings offer several advantages for power transmission systems:

  • They help to prevent premature wear and damage to the connected equipment, reducing maintenance and replacement costs.
  • They minimize vibration and shock loads, enhancing the overall smoothness and reliability of the machinery.
  • They reduce the risk of equipment failure due to misalignment-induced stresses, improving the system’s operational life.
  • They allow for easier installation and alignment adjustments, saving time and effort during setup and maintenance.

Overall, flexible couplings play a crucial role in handling misalignment and ensuring efficient power transmission in various industrial applications.

nm coupling

How does a flexible coupling affect the noise and vibration levels in a mechanical system?

A flexible coupling plays a crucial role in controlling noise and vibration levels in a mechanical system. It can significantly impact the overall smoothness and quietness of the system’s operation, contributing to enhanced performance and reduced wear on connected components.

Noise Reduction:

Flexible couplings help reduce noise in a mechanical system through their inherent ability to dampen vibrations. When the shafts of rotating machinery are not perfectly aligned, it can lead to vibrations that are transmitted throughout the system, resulting in noise generation. The elastomeric or flexible element of the coupling acts as a vibration dampener, absorbing and dissipating these vibrations. As a result, the noise levels in the system are reduced, creating a quieter operating environment.

Vibration Damping:

Vibrations in a mechanical system can lead to increased wear and tear on critical components, such as bearings, seals, and gears. Excessive vibrations can also cause resonance and damage to the system over time. Flexible couplings can effectively dampen vibrations by acting as a buffer between the driving and driven shafts. The flexible element absorbs the shock and vibrations, preventing them from propagating to other parts of the system. This vibration damping capability not only reduces noise but also protects the system from potential mechanical failures, extending the lifespan of the equipment.

Alignment Compensation:

Misalignment between shafts is a common cause of vibration and noise in rotating machinery. Flexible couplings excel at compensating for both angular and parallel misalignment. By accommodating misalignment, the coupling reduces the forces acting on the shafts and minimizes the generation of vibrations and noise. Proper alignment through the use of a flexible coupling ensures that the system operates smoothly and quietly.

Effect on Equipment Reliability:

Reducing noise and vibration levels has a positive impact on the reliability of connected equipment. Lower vibrations mean less stress on bearings and other rotating components, leading to extended component life and reduced maintenance requirements. A quieter operating environment can also be essential for certain applications, such as in laboratories or precision manufacturing processes, where excessive noise can interfere with delicate tasks or measurements.

Applications:

Flexible couplings find application in a wide range of industries, such as manufacturing, power generation, material handling, automotive, aerospace, and robotics. They are commonly used in pumps, compressors, fans, conveyors, and other rotating machinery where noise and vibration control are critical for smooth and reliable operation.

Summary:

A flexible coupling’s ability to reduce noise and dampen vibrations makes it an essential component in mechanical systems. By compensating for misalignment and providing vibration dampening properties, the flexible coupling enhances the overall system performance, reduces noise levels, and protects connected equipment from excessive wear and mechanical failures. Choosing the right type of flexible coupling based on the specific application requirements can have a significant impact on noise reduction and vibration control in the mechanical system.

nm coupling

How do you select the appropriate flexible coupling for a specific application?

Choosing the right flexible coupling for a specific application requires careful consideration of various factors to ensure optimal performance, reliability, and longevity. Here are the key steps to select the appropriate flexible coupling:

  1. Application Requirements: Understand the specific requirements of the application, including torque and speed specifications, misalignment conditions, operating environment (e.g., temperature, humidity, and presence of corrosive substances), and space limitations.
  2. Torque Capacity: Determine the maximum torque that the coupling needs to transmit. Choose a flexible coupling with a torque rating that exceeds the application’s requirements to ensure a safety margin and prevent premature failure.
  3. Misalignment Compensation: Consider the type and magnitude of misalignment that the coupling needs to accommodate. Different coupling designs offer varying degrees of misalignment compensation. Select a coupling that can handle the expected misalignment in the system.
  4. Vibration Damping: If the application involves significant vibrations, choose a flexible coupling with good damping properties to reduce vibration transmission to connected equipment and improve system stability.
  5. Environmental Factors: Take into account the environmental conditions in which the coupling will operate. For harsh environments, consider couplings made from corrosion-resistant materials.
  6. Torsional Stiffness: Depending on the application’s requirements, decide on the desired torsional stiffness of the coupling. Some applications may require high torsional stiffness for precise motion control, while others may benefit from a more flexible coupling for shock absorption.
  7. Cost and Life-Cycle Considerations: Evaluate the overall cost-effectiveness of the coupling over its expected life cycle. Consider factors such as initial cost, maintenance requirements, and potential downtime costs associated with coupling replacement.
  8. Manufacturer Recommendations: Consult coupling manufacturers and their technical specifications to ensure the selected coupling is suitable for the intended application.
  9. Installation and Maintenance: Ensure that the selected flexible coupling is compatible with the equipment and shaft sizes. Follow the manufacturer’s installation guidelines and recommended maintenance practices to maximize the coupling’s performance and longevity.

By following these steps and carefully evaluating the application’s requirements, you can select the most appropriate flexible coupling for your specific needs. The right coupling choice will lead to improved system performance, reduced wear on equipment, and enhanced overall reliability in various mechanical systems and rotating machinery.

China factory Chinese Manafacturer Flexible Cast Iron Nm Coupling with Rubber Element Water Pump Shaft Coupling Nm112 128 148 168  nm couplimgChina factory Chinese Manafacturer Flexible Cast Iron Nm Coupling with Rubber Element Water Pump Shaft Coupling Nm112 128 148 168  nm couplimg
editor by CX 2024-01-15

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