China manufacturer C-King Nm Coupling, FCL Coupling, HRC Coupling Made with Cast Iron Material nm couplimg

Product Description

NM Coupling, NM Rubber Coupling Elements, NM Rubber Spider

 

Material: NBR, CSM/SBR Color: Black
Tensile Strength: 12Mpa Hardness: 80shore A
Elongation: 350% Density: 1.25g/cm3
Size: NM50, NM67, NM82, NM97, NM112, NM128, NM148, NM168, NM194, NM214, NM240, NM265    

 
 

 
NM coupling
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:Applications for pumps, fans, compressors, vehicles, transporting equipments, constructors, cement mixers, tractors, transmission machines, metal working machines, rollers and all other transmissions
Made of rubber and steel cores are inserted in the teeth so as to provide excellent durability and performance of coupling
 
Features:
Economical and practical using
Quiet and smooth operation
Easy installation and maintenance
Available to machines with high torque and intermittent operation
Characteristics of the synthetic rubber: proper elasticity and resistance to damping, oil, acids and alkalie
 
Specifications:
1: with CE certificate 
2: full detection of quality before delivery 
3: OEM is welcomed 
4: rich experience in precision casting
material: CSM/SBR, NBR
color: black.
surface: smooth
tensile strength: 12Mpa
hardness: 80Shore A
elongation: 400%
density: 1.25g/cm3
elasticity impact: >25%
tear strength: 35KN/m
working temperature: 100oC
standard size: 
NM50, NM67, NM82, NM97, NM112, NM128, NM148, NM168, NM194, NM214, NM240, NM265

Physical character: made by injection with high quality polyester or mould CSM/SBR. It is designing and special for all kinds of metal shaft coupling with very good performance of high tensile strength, high wear resistant, high elastic resilience, water resistant, oil resistant and excellent fatigue resilience, high impact resistant etc. We have full sets moulds and supply full range of GR, GS, MT, Hb, HRC, L, NM and Gear J series couplings with high quality and excellent experience. Apply to all kinds of industrial metal shaft coupling.

Specifications:
material: polyester, CSM/SBR
color: yellow, red, purple, green, black etc.
surface: smooth
tensile strength: 12-55Mpa
hardness: 80-98Shore A
elongation: 400%-650%
density: 1.25g/cm3
elasticity impact: >25%
tear strength: 35-155KN/m
akron abrasion loss: <0.05cm3/1.61km
compression set (22h*70oC): <10%
working temperature: 120oC
standard size for polyurethane coupling: 
GR14, GR19, GR24, GR28, GR38, GR42, GR48, GR55, GR65, GR75, GR90, GR100, GR110, GR125, GR140, GR160, GR180
MT1, MT2, MT3, MT4, MT5, MT6, MT7, MT8, MT9, MT10, MT11, MT12, MT13
HRC70, HRC90, HRC110, HRC130, HRC150, HRC180, HRC230, HRC280
L35, L50, L70, L75, L90/95, L99/100, L110, L150, L190, L225, L276
FALK-R 10R, 20R, 30R, 40R, 50R, 60R, 70R, 80R
standard size for rubber coupling:
Hb80, Hb95, Hb110, Hb125, Hb140, Hb160, Hb180, Hb200, Hb240, Hb280, Hb315
HRC70, HRC90, HRC110, HRC130, HRC150, HRC180, HRC230, HRC280
L35, L50, L70, L75, L90/95, L99/100, L110, L150, L190, L225
NM50, NM67, NM82, NM97, NM112, NM128, NM148, NM168, NM194, NM214, NM240, NM265
Gear 3J, 4J, 5J, 6J, 7J, 8J, 9J, 10J, 11J
special size build molding according to the buyer's drawings
***when you enquiry, pls confirm product's number and quantity***

Standard: DIN, ANSI, GB
Material: Nr+SBR
Connection: Flange
Surface Treatment: Nothing
Head Type: Round
Elongation: 350%
Samples:
US$ 10/Piece
1 Piece(Min.Order)

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Customization:
Available

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China manufacturer C-King Nm Coupling, FCL Coupling, HRC Coupling Made with Cast Iron Material  nm couplimg

nm coupling

What industries commonly use flexible couplings for power transmission?

Flexible couplings are widely used in various industries for power transmission and motion control applications. Their ability to accommodate misalignment, dampen vibrations, and protect equipment from shock loads makes them valuable components in many industrial processes. Here are some of the industries that commonly utilize flexible couplings:

  • Manufacturing: Flexible couplings are extensively used in manufacturing industries such as automotive, aerospace, electronics, and consumer goods production. They play a critical role in transmitting power between motors and various machinery, including conveyor systems, robots, and assembly lines.
  • Oil and Gas: In the oil and gas industry, flexible couplings are used in pumps, compressors, turbines, and generators. They help transfer power in offshore platforms, refineries, pipelines, and drilling operations while compensating for the dynamic nature of these applications.
  • Power Generation: Power plants, both conventional and renewable, rely on flexible couplings to transmit power from turbines and generators to electrical generators. They are used in coal-fired, natural gas, nuclear, hydroelectric, and wind power plants.
  • Mining: In mining operations, flexible couplings are employed in various equipment, including conveyor systems, crushers, and large industrial pumps. They are designed to withstand the heavy loads and harsh conditions commonly found in mining environments.
  • Marine: Flexible couplings are essential in marine propulsion systems, connecting engines to propellers or water jets. They also find use in shipboard machinery, auxiliary systems, and offshore applications.
  • Pulp and Paper: The pulp and paper industry relies on flexible couplings in machinery used for wood processing, pulp production, papermaking, and printing processes.
  • Chemical and Petrochemical: In chemical plants and petrochemical refineries, flexible couplings are utilized in pumps, mixers, agitators, and other rotating equipment to ensure efficient power transmission and protect sensitive machinery.
  • Construction: The construction industry employs flexible couplings in various equipment, such as concrete pumps, cranes, excavators, and drilling machines.
  • Water and Wastewater: Flexible couplings are used in water treatment plants, wastewater facilities, and irrigation systems to transfer power between motors and pumps.
  • Agriculture: In agricultural machinery, flexible couplings are utilized in tractors, harvesters, and irrigation systems, enabling efficient power transmission and operation.

The versatility and adaptability of flexible couplings make them indispensable components in a wide range of industries, contributing to increased equipment reliability, reduced downtime, and improved overall system performance.

nm coupling

What are the factors to consider when choosing a flexible coupling for a specific system?

Choosing the right flexible coupling for a specific system requires careful consideration of several factors. The following are the key factors that should be taken into account:

  • 1. Misalignment Requirements: Assess the type and magnitude of misalignment expected in the system. Different couplings are designed to handle specific types of misalignment, such as angular, parallel, or axial misalignment. Choose a coupling that can accommodate the expected misalignment to prevent premature wear and failure.
  • 2. Torque Capacity: Determine the required torque capacity of the coupling to ensure it can transmit the necessary power between the shafts. Consider both the continuous and peak torque loads that the system may experience.
  • 3. Operating Speed: Take into account the rotational speed of the system. High-speed applications may require couplings that can handle the additional centrifugal forces and balance requirements.
  • 4. Temperature Range: Consider the operating temperature range of the system. Select a coupling material that can withstand the temperatures encountered without losing its mechanical properties.
  • 5. Environment and Conditions: Evaluate the environmental conditions where the coupling will be used, such as exposure to moisture, chemicals, dust, or corrosive substances. Choose a coupling material that is compatible with the operating environment.
  • 6. Space Constraints: Assess the available space for the coupling installation. Some couplings have compact designs suitable for applications with limited space.
  • 7. Installation and Maintenance: Consider the ease of installation and maintenance. Some couplings may require special tools or disassembly for maintenance, while others offer quick and simple installation.
  • 8. Torsional Stiffness: Evaluate the torsional stiffness of the coupling. A balance between flexibility and stiffness is essential to prevent excessive torsional vibrations while accommodating misalignment.
  • 9. Shock and Vibration Damping: For applications with high shock loads or vibration, select a coupling with excellent damping characteristics to protect the system from excessive forces.
  • 10. Cost and Budget: Compare the cost of the coupling with the overall budget for the system. Consider the long-term cost implications, including maintenance and replacement expenses.

Ultimately, the choice of a flexible coupling should align with the specific requirements and operating conditions of the system. Consulting with coupling manufacturers or engineering experts can provide valuable insights to ensure the optimal selection of a coupling that enhances system performance, reliability, and efficiency.

nm coupling

What are the advantages of using flexible couplings in mechanical systems?

Flexible couplings offer several advantages in mechanical systems, making them essential components in various applications. Here are the key advantages of using flexible couplings:

  • Misalignment Compensation: One of the primary advantages of flexible couplings is their ability to compensate for shaft misalignment. In mechanical systems, misalignment can occur due to various factors such as installation errors, thermal expansion, or shaft deflection. Flexible couplings can accommodate angular, parallel, and axial misalignment, ensuring smooth power transmission and reducing stress on the connected equipment and shafts.
  • Vibration Damping: Flexible couplings act as damping elements, absorbing and dissipating vibrations and shocks generated during operation. This feature helps to reduce noise, protect the equipment from excessive wear, and enhance overall system reliability and performance.
  • Torsional Flexibility: Flexible couplings provide torsional flexibility, allowing them to handle slight angular and axial deflections. This capability protects the equipment from sudden torque fluctuations, shock loads, and torque spikes, ensuring smoother operation and preventing damage to the machinery.
  • Overload Protection: In case of sudden overloads or torque spikes, flexible couplings can absorb and distribute the excess torque, protecting the connected equipment and drivetrain from damage. This overload protection feature prevents unexpected failures and reduces downtime in critical applications.
  • Reduce Wear and Maintenance: By compensating for misalignment and damping vibrations, flexible couplings help reduce wear on the connected equipment, bearings, and seals. This results in extended component life and reduced maintenance requirements, leading to cost savings and improved system reliability.
  • Compensation for Thermal Expansion: In systems exposed to temperature variations, flexible couplings can compensate for thermal expansion and contraction, maintaining proper alignment and preventing binding or excessive stress on the equipment during temperature changes.
  • Electric Isolation: Some types of flexible couplings, such as disc couplings, offer electrical isolation between shafts. This feature is beneficial in applications where galvanic corrosion or electrical interference between connected components needs to be minimized.
  • Space and Weight Savings: Flexible couplings often have compact designs and low inertia, which is advantageous in applications with space constraints and where minimizing weight is crucial for performance and efficiency.
  • Cost-Effectiveness: Flexible couplings are generally cost-effective solutions for power transmission and motion control, especially when compared to more complex and expensive coupling types. Their relatively simple design and ease of installation contribute to cost savings.

In summary, flexible couplings play a vital role in mechanical systems by providing misalignment compensation, vibration damping, overload protection, and torsional flexibility. These advantages lead to improved system performance, reduced wear and maintenance, and enhanced equipment reliability, making flexible couplings a preferred choice in various industrial, automotive, marine, and aerospace applications.

China manufacturer C-King Nm Coupling, FCL Coupling, HRC Coupling Made with Cast Iron Material  nm couplimgChina manufacturer C-King Nm Coupling, FCL Coupling, HRC Coupling Made with Cast Iron Material  nm couplimg
editor by CX 2023-08-08