China best Coupling Standard Straight Bore Nm Coupling 110/130/150/180/230/ 280 nm couplimg

Product Description

Product Description

The half coupling of NM type rubber coupling is made of high-strength cast iron and high elastic rubber in the middle,

It is mainly used for oil pump coupling, water pump coupling, etc,

The main models are NM50, NM67, NM82, NM97, NM112, NM128, NM148, NM168, NM194, NM214
 

Detailed Photos

Product Parameters

    Coupling NM Type    
 Torque
Max.speed rpm.  
 Bore diameter
Boss diam
(D)
  Outside diam.
(OD)
  Distance(L) Space &perm. Tolerance    approx. Weight (kgs.)
Normal (Kg*m)  Max. (Kg*m) Min. Max.
50 1.3 2.3 13,500 7 19 33 50 25 2.0±0.5 0.48
67 2.2 4 10,000 8 28 46 67 30 2.5±0.5 1.02
82 5.0 9 8,000 10 32 53 82 40 3.0±1.0 1.88
97 10.5 19 7,000 10 42 69 97 50 3.0±1.0 3.54
112 16.7 30 6,000 14 48 79 112 60 3.5±1.0 5.40
128 26.7 48 5,000 18 55 90 128 69 3.5±1.0 8.10
148 41.7 75 4,500 22 65 107 148 80 3.5±1.0 13.50
168 69.5 125 4,000 28 75 124 168 90 3.5±1.5 19.30
194 112.0 200 3,500 32 85 140 198 98 3.5±1.5 26.30
214 167.0 300 3,000 45 95 158 218 112 4.0±2.0 35.70

Certifications

Our Advantages

Packaging & Shipping

WHY CHOOSE US

Comprehensive Product Portfolio We produce and supply a wide range of power transmission
products including drive chains, leaf chains, conveyor chains, agricultural chains, sprockets, and
couplings. This one-store-for-all shopping experience will significantly reduce your searching costs while
guarantee youfind what you want at 1 click.

Value Choice Products Our products are the best combination of quality and price, and you get what
you want within your budgets

Seasoned Sales Associates and Engineers We have 15 seasoned sales associates and 5 engineers;
on our team at your disposal any time when you need a helping hand. They are well trained with industry
know-now and will always respond to your requests within 24 hours.

100% Customer Retention Rate Our regular customers from overseas come back not just for our
premium quality products, but for the superior services that we’ve provided over the years

FAQ

Q1: What’s your average lead time?
A: It varies. Our regular end-to-end lead time is 1-2 months.. We also provide express shipments for rush orders. For details,please consult our sales associate.

Q2: Is your price better than your competitors given the same quality?
A: Definitely YES. We provide the most competitive price in the power transmission industry. If price disparity exists, we’ll be more than happy to do a price match.
Q3: Can you make chains according to my CAD drawings?
A: Yes. Besides the regular standard chains, we produce non-standard and custom-design products to meet the specific technical requirements. In reality, a sizable portion of our production capacity is assigned to make non-standard products.

Q4: Can we inspect the goods before shipment?
A: Yes. You or your representative or any third-party inspection party assigned is allowed access to our facility and do the inspection.

Q5: What kind of payment method is acceptable for your mill?
A: We’re flexible. We take T/T, L/C, or any other online payment methods so long as it’s applicable for you.

Q6: What if I have any other questions?
A: Whenever in doubt, you’re always encouraged to consult our sales associate any time – They will help you to your satisfaction.

 

Warranty: 1 Year
Connection: Female
Structure: Control
Flexible or Rigid: Flexible
Material: Carbon Steel
Standard: Standard
Samples:
US$ 10/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

China best Coupling Standard Straight Bore Nm Coupling 110/130/150/180/230/ 280  nm couplimg

nm coupling

Can flexible couplings be used in both horizontal and vertical shaft arrangements?

Yes, flexible couplings can be used in both horizontal and vertical shaft arrangements. The design of flexible couplings allows them to accommodate misalignment and compensate for angular, parallel, and axial displacements between the shafts, making them suitable for various shaft orientations.

Horizontal Shaft Arrangements:

In horizontal shaft arrangements, where the shafts are parallel to the ground or horizontal plane, flexible couplings are commonly used to connect two rotating shafts. These couplings help transmit torque from one shaft to another while accommodating any misalignment that may occur during operation. Horizontal shaft arrangements are common in applications such as pumps, compressors, conveyors, and industrial machinery.

Vertical Shaft Arrangements:

In vertical shaft arrangements, where the shafts are perpendicular to the ground or vertical plane, flexible couplings are also applicable. Vertical shafts often require couplings that can handle the additional weight and forces resulting from gravity. Flexible couplings designed for vertical applications can support the weight of the rotating equipment while allowing for some axial movement to accommodate thermal expansion or other displacements. Vertical shaft arrangements are commonly found in applications such as pumps, gearboxes, turbines, and some marine propulsion systems.

Considerations for Vertical Shaft Arrangements:

When using flexible couplings in vertical shaft arrangements, there are a few additional considerations to keep in mind:

  • Thrust Load: Vertical shafts can generate thrust loads, especially in upward or downward direction. The flexible coupling should be selected based on its capacity to handle both radial and axial loads to accommodate these forces.
  • Lubrication: Some vertical couplings may require additional lubrication to ensure smooth operation and reduce wear, particularly if they are exposed to high axial loads or extended vertical shafts.
  • Support and Bearing: Proper support and bearing arrangements for the vertical shaft are essential to prevent excessive shaft deflection and ensure the flexible coupling functions correctly.

Overall, flexible couplings are versatile and adaptable to various shaft orientations, providing efficient power transmission and misalignment compensation. Whether in horizontal or vertical arrangements, using the appropriate flexible coupling design and considering the specific application requirements will help ensure reliable and efficient operation.

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 best Coupling Standard Straight Bore Nm Coupling 110/130/150/180/230/ 280  nm couplimgChina best Coupling Standard Straight Bore Nm Coupling 110/130/150/180/230/ 280  nm couplimg
editor by CX 2023-10-07

Recent Posts

Nm Coupling

As one of nm coupling manufacturers, suppliers and exporters of mechanical products, We offer nm coupling and many other products.

Please contact us for details.

Mail: [email protected]

Manufacturer supplier exporter of nm coupling.