Product Description

JMIIJ Type Intermediate Shaft Disc Diaphragm Coupling(JB/T9147-1999)

Product Description

 

♦Description
JM Series Diaphragm Coupling of flexible metal flexible coupling, which relies on the metal diaphragm to transmit torque from the main connection, motivation, has the advantages of elastic damping and no lubrication, no noise, is an ideal product for replacing the gear coupling and coupling current. It can compensate for the axial, radial, and angular deviation caused by the manufacturing error, installation error, bearing deformation, and the change in temperature rise.

The main characteristics of JM Series Diaphragm Coupling:
1. Compensation two-axis misalignment of the ability, and tooth type coupling can be much more than a double angle displacement, radial displacement of the small, flexible, allowing a certain axial, radial, and angular displacement.
2. Obvious damping effect, no noise, no wear, and tear.
3. High transmission efficiency, up to 99.86%. Especially suitable for medium and high-speed high-power transmission.
4. Adapt to high temperature (-80+300) and harsh environments, and can be in shock, vibration, safety, and dynamic conditions.
5. Simple structure, lightweight, small size, convenient assembly, and disassembly. Without moving the machine can be disassembled (with intermediate type), with no need for lubrication.
6. Accurately convey the rotational speed, the operation has not turned bad, can be used for the transmission of precision machinery.

JM series diaphragm flexible coupling is widely used in the machinery and equipment industry, metallurgy, mines, petroleum, chemical, electric power, shipbuilding, lifting transport, textile, light industry, agricultural machinery, printing machinery, and water pump, fan, etc. in the transmission of power machine.

♦Detailed Pictures

♦Basic Parameter and Main Dimension

Note:
N.m= Norminal Torque; Tmax= Instantaneous maximum torque; r.min= Max speed of rotation;
d.d1= Diameter of shaft hole; Y L= Length of shaft hole; kg= Mass(For every additional metre); kg.m²= Rotational inertia

Allowable Compensation for Diaphragm Coupling
Note:
1. The allowable compensation quantity listed in the table refers to the relative offset of 2 axes formed by the comprehensive factors such as vibration, shock, deformation and temperature change caused by manufacturing error, installation error and working load change under working condition.
2. The maximum allowable angular deviation of the coupling shall not exceed ±5°.
 

Packaging & Shipping

 

♦Packaging & Shipping

Other products

 

Transmission Machinery  Parts Name	Model
Universal Coupling	WS,WSD,WSP
Cardan Shaft	SWC,SWP,SWZ
Tooth Coupling	CL,CLZ,GCLD,GIICL, GICL,NGCL,GGCL,GCLK
Disc Coupling	JMI,JMIJ,JMII,JMIIJ
High Flexible Coupling	LM
Chain Coupling	GL
Jaw Coupling	LT
Grid Coupling	JS

 

 

Company Profile

 

HangZhou CHINAMFG Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the design and manufacture of various types of coupling. There are 26 employees in our company, including 2 senior engineers and no fewer than 10 mechanical design and manufacture, heat treatment, welding, and other professionals.

Advanced and reasonable process, complete detection means. Our company actively introduces foreign advanced technology and equipment, on the basis of the condition, we make full use of the advantage and do more research and innovation. Strict to high quality and operate strictly in accordance with the ISO9000 quality certification system standard mode.

Our company supplies different kinds of products. High quality and reasonable price. We stick to the principle of “quality first, service first, continuous improvement and innovation to meet the customers” for the management and “zero defect, zero complaints” as the quality objective. 

 

Our service

 

1. Design Services
Our design team has experience in Cardan shafts relating to product design and development. If you have any needs for your new product or wish to make further improvements, we are here to offer our support.

2. Product Services
Raw materials → Cutting → Forging →Rough machining →Shot blasting →Heat treatment →Testing →Fashioning →Cleaning→ Assembly→ Packing→ Shipping

3. Samples Procedure
We could develop the sample according to your requirement and amend the sample constantly to meet your need.

4. Research & Development
We usually research the new needs of the market and develop the new model when there is new cars in the market.

5. Quality Control
Every step should be a special test by Professional Staff according to the standard of ISO9001 and TS16949.
 

FAQ

 

Q 1: Are you a trading company or a manufacturer?
A: We are a professional manufacturer specializing in manufacturing various series of couplings.

Q 2: Can you do OEM?
Yes, we can. We can do OEM & ODM for all the customers with customized artworks in PDF or AI format.

Q 3: How long is your delivery time?
Generally, it is 20-30 days if the goods are not in stock. It is according to quantity.

Q 4: Do you provide samples? Is it free or extra?
Yes, we could offer the sample but not for free. Actually, we have a very good price principle, when you make the bulk order the cost of the sample will be deducted.

Q 5: How long is your warranty?
A: Our Warranty is 12 months under normal circumstances.

Q 6: What is the MOQ?
A: Usually our MOQ is 1 pcs.

Q 7: Do you have inspection procedures for coupling?
A: 100% self-inspection before packing.

Q 8: Can I have a visit to your factory before the order?
A: Sure, welcome to visit our factory.

Q 9: What’s your payment?
A: T/T.  
 

♦Contact Us

Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China

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Common Applications of Disc Couplings

Disc couplings find extensive use across various industries and applications where reliable torque transmission, misalignment compensation, and torsional stiffness are essential. Some notable examples include:

• Industrial Machinery: Disc couplings are employed in industrial equipment such as pumps, compressors, generators, and conveyors. They ensure precise torque transfer and alignment in heavy-duty machinery.
• Power Generation: Gas turbines, steam turbines, and power generators often utilize disc couplings to transmit torque between components while withstanding high rotational speeds.
• Aerospace: In aircraft and spacecraft, disc couplings help connect critical systems like engines and auxiliary power units, ensuring dependable torque transmission in demanding environments.
• Marine: Ships and offshore platforms use disc couplings to connect propulsion systems, generators, and other machinery, even in conditions with variable loads and misalignments.
• Oil and Gas: Disc couplings play a crucial role in drilling rigs, pumps, and other equipment where reliable torque transmission and misalignment compensation are vital.
• Automotive: Some automotive applications use disc couplings to connect components within drivetrains and transmissions, especially in vehicles with high-performance requirements.

These examples highlight the versatility and importance of disc couplings in various industries where precise torque transmission, misalignment handling, and torsional stiffness are critical for optimal performance.

Suitability of Disc Couplings for High-Speed Rotation and Critical Alignment

Disc couplings are well-suited for applications involving high-speed rotation and critical alignment due to their unique design and performance characteristics:

• High-Speed Rotation: Disc couplings can handle high rotational speeds while maintaining their balance and integrity. Their lightweight and compact design minimize the effects of centrifugal forces, making them suitable for high-speed applications.
• Critical Alignment: Disc couplings offer excellent flexibility and angular misalignment compensation. They can accommodate axial, radial, and angular misalignments, making them suitable for applications where maintaining precise alignment is crucial.
• Torsional Stiffness: Disc couplings can provide a balance between flexibility and torsional stiffness, allowing them to transmit torque accurately even in critical alignment scenarios.
• High Torque Capacity: Many disc couplings are designed to handle high torque loads, making them suitable for applications with demanding torque requirements.
• Resonance Damping: The flexible nature of disc couplings can help dampen vibrations and reduce the risk of resonance, which is important in high-speed applications.

When selecting a disc coupling for high-speed rotation and critical alignment, it’s essential to consider factors such as torque requirements, speed range, misalignment compensation, space limitations, and dynamic behavior to ensure optimal performance and reliability in the specific application.

Considerations for Selecting a Disc Coupling for a Specific Application

Choosing the right disc coupling for a particular application involves considering several important factors to ensure optimal performance and reliability:

• Torque Requirements: Determine the maximum and continuous torque requirements of the application. Select a disc coupling that can handle the expected torque without exceeding its rated capacity.
• Misalignment: Evaluate the type and magnitude of misalignment expected in the system, including angular, parallel, and axial misalignment. Choose a disc coupling with the appropriate misalignment capability to accommodate these factors.
• Speed and RPM: Consider the operating speed and rotational speed of the connected shafts. High-speed applications may require disc couplings with balanced design to prevent vibration issues.
• Space Limitations: Evaluate the available space for installing the coupling. Disc couplings are compact and can be suitable for applications with limited space.
• Environmental Conditions: Assess the operating environment, including temperature, humidity, presence of corrosive agents, and exposure to dust or debris. Choose materials and coatings that can withstand the environmental conditions.
• Shaft Sizes: Ensure that the disc coupling’s hub bore sizes match the shaft sizes of the connected equipment.
• Alignment Maintenance: Consider the ease of installation and alignment maintenance. Some disc couplings feature spacer elements that simplify alignment and reduce downtime during maintenance.
• Backlash: Evaluate the backlash or play that the coupling introduces between the shafts. Backlash can affect the accuracy of position and torque transmission in precision applications.
• Dynamic Balancing: For high-speed applications, consider disc couplings that are dynamically balanced to prevent vibration issues that can arise from rotational imbalance.
• Resonance and Damping: Determine if the coupling design includes features to dampen vibrations and reduce the risk of resonance in the system.
• Service Life: Estimate the expected service life based on the application’s duty cycle and requirements. Choose a disc coupling with a suitable service life to avoid frequent replacements.
• Cost and Value: Compare the cost of the disc coupling with its features, performance benefits, and expected lifespan. Choose a coupling that provides the best value for your specific application.

By carefully considering these factors, you can select a disc coupling that meets the unique requirements of your machinery system and ensures reliable operation.

editor by CX 2024-05-03