Product Description
JM II J Type Diaphragm Coupling With Intermediate Shaft
JM series diaphragm flexible coupling is widely used in 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.
The main characteristics of JM Series Diaphragm Coupling:
1.Compensation 2 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 environment, and can be in shock, vibration, safety and dynamic conditions.
5.Simple structure, light weight, small size, convenient assembly and disassembly. Without moving the machine can be disassembled (with intermediate type), no need of lubrication.
6.Accurately convey the rotational speed, the operation has not turned bad, can be used for the transmission of precision machinery.
JMIIJ Type Diaphragm Coupling Basic Parameter And Main Dimension(JB/T9147-1999)
Type | Nominal torque Tn |
Peak torque Tmax |
Max Speed nmax |
Bore Diameter d,d1 |
Bore length | D | D1 | D2 | L1min | t | Mass | Rotary inertia |
|||
J1 type | Y type |
L (recommend) |
L1min | Every 1meter of mass added | |||||||||||
L | |||||||||||||||
N·m | N·m | r·min-1 | mm | kg | kg·m2 | ||||||||||
JMIIJ1 | 63 | 100 | 9300 | 20,22,24 | 38 | 52 | 40 | 92 | 53 | 45 | 70 | 8±0.2 | 2 | 4.1 | 0.002 |
25,28 | 44 | 62 | |||||||||||||
30,32,35,38 | 60 | 82 | |||||||||||||
JMIIJ2 | 100 | 200 | 8400 | 25,28 | 44 | 62 | 45 | 102 | 63 | 80 | 2.9 | 0.003 | |||
30,32,35,38 | 60 | 82 | |||||||||||||
40,42,45 | 84 | 112 | |||||||||||||
JMIIJ3 | 250 | 400 | 6700 | 30,32,35,38 | 60 | 82 | 55 | 128 | 77 | 76 | 96 | 11±0.3 | 5.7 | 8 | 0.009 |
40,42,45,48,50,55 | 84 | 112 | |||||||||||||
JMIIJ4 | 500 | 800 | 5900 | 35,38 | 60 | 82 | 65 | 145 | 91 | 116 | 8.5 | 0.017 | |||
40,42,45,48,50,55,56 | 84 | 112 | |||||||||||||
60,63,65 | 107 | 142 | |||||||||||||
JMIIJ5 | 800 | 1250 | 5100 | 40,42,45,48,50,55,56 | 84 | 112 | 75 | 168 | 105 | 102 | 136 | 14±0.3 | 12.5 | 12 | 0.034 |
60,63,65,70,71,75 | 107 | 142 | |||||||||||||
JMIIJ6 | 1250 | 2000 | 4750 | 45,48,50,55,56 | 84 | 112 | 80 | 180 | 112 | 140 | 15±0.4 | 16.5 | 0.053 | ||
60,63,65,70,71,75 | 107 | 142 | |||||||||||||
80 | 132 | 172 | |||||||||||||
JMIIJ7 | 2000 | 3150 | 4300 | 50,55,56 | 84 | 112 | 200 | 120 | 114 | 21 | 19 | 0.082 | |||
60,63,65,70,71,75 | 107 | 142 | |||||||||||||
80,85 | 132 | 172 | |||||||||||||
JMIIJ8 | 2500 | 4000 | 4200 | 55,56 | 84 | 112 | 205 | 120 | 20±0.4 | 23 | 0.092 | ||||
60,63,65,70,71,75 | 107 | 142 | |||||||||||||
80,85 | 132 | 172 | |||||||||||||
JMIIJ9 | 3150 | 5000 | 4000 | 55,56 | 84 | 112 | 90 | 215 | 128 | 127 | 160 | 20±0.4 | 27 | 21 | 0.117 |
60,63,65,70,71,75 | 107 | 142 | |||||||||||||
80,85,90 | 132 | 172 | |||||||||||||
JMIIJ10 | 4000 | 6300 | 3650 | 60,63,65,70,71,75 | 107 | 142 | 100 | 235 | 132 | 170 | 23±0.5 | 36 | 0.191 | ||
80,85,90,95 | 132 | 172 | |||||||||||||
JMIIJ11 | 5000 | 8000 | 3400 | 60,63,65,70,71,75 | 107 | 142 | 250 | 145 | 140 | 42 | 26 | 0.252 | |||
80,82,90,95 | 132 | 172 | |||||||||||||
100 | 167 | 212 | |||||||||||||
JMIIJ12 | 6300 | 10000 | 3200 | 60,63,65,70,71,75 | 107 | 142 | 110 | 270 | 155 | 190 | 50 | 0.349 | |||
80,85,90,95 | 132 | 172 | |||||||||||||
100,110 | 167 | 212115 | |||||||||||||
JMIIJ13 | 8000 | 12500 | 2850 | 65,70,71,75 | 107 | 142 | 115 | 300 | 162 | 165 | 200 | 27±0.6 | 66 | 47 | 0.56 |
80,85,90,95 | 132 | 172 | |||||||||||||
100,110 | 167 | 212 | |||||||||||||
JMIIJ14 | 10000 | 16000 | 2700 | 70,71,75 | 107 | 142 | 125 | 320 | 176 | 220 | 78 | 0.75 | |||
80,85,90,95 | 132 | 172 | |||||||||||||
100,110,120,125 | 167 | 212 | |||||||||||||
JMIIJ15 | 12500 | 20000 | 2450 | 75 | 107 | 142 | 140 | 350 | 186 | 240 | 32±0.7 | 110 | 51 | 1.26 | |
80,85,90,95 | 132 | 172 | |||||||||||||
100,110,120,125 | 167 | 212 | |||||||||||||
130 | 202 | 252 | |||||||||||||
JMIIJ16 | 16000 | 25000 | 2300 | 80,85,90,95 | 132 | 172 | 145 | 370 | 203 | 219 | 250 | 125 | 72 | 1.63 | |
100,110,120,125 | 167 | 212 | |||||||||||||
130,140 | 202 | 252 | |||||||||||||
JMIIJ17 | 20000 | 31500 | 2150 | 90,95 | 132 | 172 | 165 | 400 | 230 | 290 | 160 | 2.45 | |||
100,110,120,125 | 167 | 212 | |||||||||||||
130,140,150 | 202 | 252 | |||||||||||||
160 | 242 | 302 | |||||||||||||
JMIIJ18 | 25000 | 40000 | 1950 | 100,110,120,125 | 167 | 212 | 175 | 440 | 245 | 300 | 38±0.9 | 220 | 3.99 | ||
130,140,150 | 202 | 252 | |||||||||||||
160,170 | 242 | 302 | |||||||||||||
JMIIJ19 | 31500 | 50000 | 1850 | 100,110,120,125 | 167 | 212 | 185 | 460 | 260 | 267 | 320 | 245 | 89 | 4.98 | |
130,140,150 | 202 | 252 | |||||||||||||
160,170,180 | 242 | 302 | |||||||||||||
JMIIJ20 | 35500 | 56000 | 1800 | 120,125 | 167 | 212 | 200 | 480 | 280 | 267 | 350 | 38±0.9 | 275 | 89 | 6.28 |
130,140,150 | 202 | 252 | |||||||||||||
160,170,180 | 242 | 302 | |||||||||||||
190,200 | 282 | 352 | |||||||||||||
JMIIJ21 | 40000 | 63000 | 1700 | 120,125 | 167 | 212 | 210 | 500 | 295 | 370 | 320 | 7.68 | |||
130,140,150 | 202 | 252 | |||||||||||||
160,170,180 | 242 | 302 | |||||||||||||
190,200 | 282 | 352 | |||||||||||||
JMIIJ22 | 50000 | 80000 | 1600 | 140,150 | 202 | 252 | 220 | 450 | 310 | 299 | 380 | 44±1 | 400 | 110 | 11.6 |
160,170,180 | 242 | 302 | |||||||||||||
190,200,220 | 282 | 352 | |||||||||||||
JMIIJ23 | 63000 | 100000 | 1450 | 140,150 | 202 | 252 | 240 | 600 | 335 | 356 | 410 | 50±1.2 | 560 | 145 | 19.8 |
160,170,180 | 242 | 302 | |||||||||||||
190,200,220 | 282 | 352 | |||||||||||||
240 | 330 | 410 | |||||||||||||
JMIIJ24 | 80000 | 125000 | 1400 | 160,170,180 | 242 | 302 | 255 | 620 | 350 | 440 | 620 | 23.6 | |||
190,200,220 | 282 | 352 | |||||||||||||
240,250 | 330 | 410 | |||||||||||||
JMIIJ25 | 90000 | 140000 | 1300 | 180 | 242 | 302 | 275 | 660 | 385 | 480 | 740 | 31.9 | |||
190,200,220 | 282 | 352 | |||||||||||||
240,250,260 | 330 | 410 | |||||||||||||
280,300 | 380 | 470 | |||||||||||||
JMIIJ26 | 12000 | 180000 | 1200 | 190,200,220 | 282 | 352 | 295 | 720 | 410 | 406 | 510 | 60±1.4 | 970 | 190 | 50.4 |
240,250,260 | 330 | 410 | |||||||||||||
280,300 | 380 | 470 | |||||||||||||
JMIIJ27 | 140000 | 200000 | 1150 | 220 | 282 | 352 | 300 | 740 | 420 | 520 | 1050 | 57 | |||
240,250,260 | 330 | 410 | |||||||||||||
280,300 | 380 | 470 | |||||||||||||
JMIIJ28 | 160000 | 224000 | 1100 | 240,250,260 | 330 | 410 | 320 | 770 | 450 | 457 | 560 | 1200 | 215 | 69.4 | |
280,300 | 380 | 470 | |||||||||||||
JMIIJ29 | 180000 | 280000 | 1050 | 250,260 | 330 | 410 | 350 | 820 | 490 | 600 | 1400 | 95.5 | |||
280,300,320 | 380 | 470 | |||||||||||||
340 | 450 | 550 | |||||||||||||
JMIIJ30 | 280000 | 450000 | 1000 | 280,300,320 | 380 | 470 | 350 | 875 | 480 | 559 | 620 | 50±1.6 | 1400 | 235 | 96.5 |
340,360 | 450 | 550 | 550 | 109.5 | |||||||||||
JMIIJ31 | 400000 | 630000 | 930 | 300,320 | 380 | 470 | 935 | 520 | 610 | 630 | 60±1.0 | 1800 | 290 | 142 | |
340,360,380 | 450 | 550 | 560 | 152 | |||||||||||
400 | 540 | 650 | 600 | 162 | |||||||||||
JMIIJ32 | 450000 | 710000 | 880 | 320 | 380 | 470 | 380 | 1030 | 480 | 622 | 690 | 2250 | 330 | 194 | |
340,360,380 | 450 | 550 | 600 | 224 | |||||||||||
400,420 | 540 | 650 | 640 | 240 | |||||||||||
JMIIJ33 | 560000 | 900000 | 820 | 360,380 | 450 | 550 | 400 | 1080 | 580 | 660 | 726 | 66±2.2 | 2750 | 390 | 271 |
400,420,440,450,460 | 540 | 650 | 700 | 325 | |||||||||||
JMIIJ34 | 1000000 | 1600000 | 740 | 400,420,440,450 | 540 | 650 | 460 | 1160 | 620 | 750 | 836 | 70±2.3 | 3500 | 450 | 387 |
160,480,500 | 540 | 650 | 750 | 465 | |||||||||||
JMIIJ35 | 1400000 | 2240000 | 680 | 400,420,440,450,480,500 | 540 | 650 | 520 | 1290 | 790 | 820 | 946 | 10±2.6 | 5000 | 570 | 750 |
530,560 | 680 | 800 | 840 | 810 | |||||||||||
JMIIJ36 | 2000000 | 3150000 | 620 | 480,500 | 540 | 650 | 570 | 1410 | 760 | 900 | 1040 | 92±2.8 | 6600 | 710 | 1050 |
530,560,600 | 680 | 800 | 920 | 1290 | |||||||||||
JMIIJ37 | 2800000 | 4000000 | 570 | 450,460,480,500 | 540 | 650 | 610 | 1530 | 810 | 1000 | 1100 | 105±3 | 8400 | 880 | 1630 |
530,560,600 | 680 | 800 | 980 | 1950 | |||||||||||
JMIIJ38 | 4000000 | 6000000 | 520 | 560,600,630 | 680 | 800 | 670 | 1670 | 950 | 1100 | 1210 | 115±3.4 | 11000 | 1050 | 2670 |
670,710 | 780 | – | 1070 | 3030 | |||||||||||
JMIIJ39 | 5000000 | 8000000 | 480 | 600,630 | 680 | 800 | 730 | 1830 | 970 | 1200 | 1320 | 125±3.7 | 14500 | 1350 | 4060 |
670,710,750 | 780 | – | 1170 | 4800 | |||||||||||
JMIIJ40 | 6300000 | 10000000 | 430 | 670,710,750 | 780 | 800 | 2000 | 1140 | 1300 | 1450 | 130±4 | 19000 | 1600 | 6600 | |
800,850 | 880 | 1290 | 7500 | ||||||||||||
JMIIJ41 | 8000000 | 12500000 | 400 | 750 | 780 | 2200 | 1260 | 1400 | 1600 | 140±4.4 | 2500 | 1850 | 10400 | ||
800,850 | 880 | 1420 | 11900 | ||||||||||||
JMIIJ42 | 10000000 | 16000000 | 350 | 800,850 | 880 | 960 | 2400 | 1370 | 1500 | 1760 | 32000 | 2100 | 15200 | ||
900,950 | 980 | 1550 | 17400 |
Production Pictures
♦Other Products List
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 |
♦Our Company
HangZhou CHINAMFG Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the design and manufacture of various types of coupling. There are 86 employees in our company, including 2 senior engineers and no fewer than 20 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 Services
1.Design Services
Our design team has experience in cardan shaft 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 special test by Professional Staff according to the standard of ISO9001 and TS16949.
♦FAQ
Q 1: Are you trading company or 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 of 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 then cost of sample will be deducted.
Q 5: How long is your warranty?
A: Our Warranty is 12 month under normal circumstance.
Q 6: What is the MOQ?
A:Usually our MOQ is 1pcs.
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:1) T/T.
♦Contact Us
Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China
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Can Diaphragm Couplings Compensate for Axial, Angular, and Parallel Misalignments?
Yes, diaphragm couplings are designed to compensate for axial, angular, and parallel misalignments between two shafts, making them highly flexible and versatile for various mechanical systems. Here’s how diaphragm couplings handle each type of misalignment:
- Axial Misalignment:
- Angular Misalignment:
- Parallel Misalignment:
Diaphragm couplings can accommodate a limited amount of axial misalignment, which refers to the offset between the rotational axes of the connected shafts. The flexible diaphragm allows for a slight axial movement, ensuring that the coupling can handle minor misalignments without introducing significant additional stresses to the shafts or coupling components.
Diaphragm couplings can also compensate for angular misalignment, which occurs when the rotational axes of the shafts are not parallel. The flexibility of the diaphragm allows it to flex and bend, allowing the coupling to transmit torque efficiently even when the shafts are at an angle to each other.
Parallel misalignment refers to the lateral offset between the shafts in the same plane. Diaphragm couplings can accommodate a certain degree of parallel misalignment due to the flexibility of the diaphragm. This feature helps prevent binding or premature wear on the coupling and connected machinery.
Diaphragm couplings are specifically designed to handle misalignments while maintaining smooth and efficient torque transmission. The flexibility of the diaphragm allows it to compensate for these misalignments, reducing stress on the connected equipment and providing a more reliable power transmission solution.
It’s important to note that while diaphragm couplings can accommodate some misalignments, there are limits to the amount of misalignment they can compensate for. Excessive misalignments beyond the coupling’s specified tolerances can lead to reduced coupling performance, premature wear, and potential failure. Therefore, it is essential to follow the manufacturer’s guidelines and recommendations for allowable misalignments to ensure optimal performance and longevity of the diaphragm coupling in a given application.
How Does the Flexibility of Diaphragm Couplings Enhance Their Performance in Challenging Environments?
Diaphragm couplings’ flexibility is a key feature that enhances their performance in challenging environments. The ability to flex and compensate for misalignments provides several advantages, making them well-suited for various industrial applications. Here’s how the flexibility of diaphragm couplings contributes to their enhanced performance:
- Misalignment Compensation:
- Vibration Dampening:
- Shock Absorption:
- Temperature Variations:
One of the primary benefits of diaphragm couplings’ flexibility is their ability to accommodate misalignments between the connected shafts. In real-world applications, it is challenging to achieve perfect alignment between shafts due to factors like thermal expansion, shaft deflection, and machine assembly tolerances. Diaphragm couplings can handle axial, angular, and parallel misalignments, ensuring smooth operation even in situations where misalignments may occur during machine operation. By compensating for misalignment, diaphragm couplings reduce stress on the shafts and connected machinery, minimizing the risk of premature wear and failure.
The flexibility of diaphragm couplings allows them to absorb and dampen vibrations that can arise during machine operation. Vibrations can be caused by factors like imbalances, load fluctuations, and mechanical resonances. Diaphragm couplings act as a vibration buffer, attenuating vibration transmission from one shaft to another. This dampening effect helps reduce the risk of mechanical resonance, which can lead to increased stresses and premature failure of components. By dampening vibrations, diaphragm couplings contribute to smoother and quieter operation, promoting overall system reliability and longevity.
In some industrial applications, sudden shocks and impacts can occur due to machine start-ups, load changes, or external forces. The flexibility of diaphragm couplings allows them to absorb and distribute the energy generated by these shocks. By absorbing shock loads, diaphragm couplings protect the connected machinery from damage and prevent potential disruptions in the production process. This shock absorption capability is particularly valuable in applications where equipment encounters frequent and varying shock loads.
Diaphragm couplings can operate effectively across a wide range of temperatures. The flexibility of the diaphragm allows it to maintain its performance even in high-temperature environments. This versatility makes diaphragm couplings suitable for applications in industries like steel manufacturing, glass production, and petrochemical processing, where high temperatures are common.
Overall, the flexibility of diaphragm couplings is a significant advantage in challenging environments. By compensating for misalignments, dampening vibrations, absorbing shocks, and withstanding temperature variations, diaphragm couplings ensure reliable and efficient power transmission in various industrial settings. Their ability to enhance system performance and protect machinery from adverse conditions makes them a preferred choice in critical applications that demand durability, precision, and resilience.
Types of Diaphragm Couplings and Their Specific Applications
Diaphragm couplings come in various designs and materials, each suited for specific applications. Here are some of the different types of diaphragm couplings and their specific applications:
- Metal Diaphragm Couplings:
- Industrial machinery such as pumps, compressors, and generators
- Motion control systems in robotics and automation
- Paper and printing machinery
- Machine tools and CNC equipment
- Marine and offshore equipment
- Aerospace systems
- Elastomeric Diaphragm Couplings:
- Pumps and compressors in HVAC systems
- Power transmission in agricultural machinery
- Automotive drivetrain components
- Small engine applications
- Medical equipment
- High-Temperature Diaphragm Couplings:
- Steel and metal processing industries
- Heat treatment furnaces
- Power generation plants
- Chemical processing equipment
- Glass and ceramic manufacturing
- Non-Metallic Diaphragm Couplings:
- Electrical machinery and equipment
- Semiconductor manufacturing
- Food and beverage processing
- Pharmaceutical and biotechnology applications
Metal diaphragm couplings are the most common type and are often made of stainless steel or other high-strength alloys. They are used in a wide range of applications that require high torque transmission, precision, and reliability. Some common applications include:
Elastomeric diaphragm couplings have a flexible diaphragm made of elastomeric materials like rubber or urethane. They offer vibration dampening properties and are suitable for applications that require shock absorption and noise reduction. Specific applications include:
These couplings are designed to withstand high temperatures, making them suitable for applications in extreme heat environments. They are commonly used in:
Non-metallic diaphragm couplings are made from materials like polyurethane or other composites. They are often used in applications where electrical isolation or non-magnetic properties are required. Specific applications include:
Each type of diaphragm coupling offers unique features and advantages, making them suitable for various industries and applications. When selecting a diaphragm coupling, it’s essential to consider factors like torque requirements, misalignment tolerance, environmental conditions, and specific performance characteristics to ensure the coupling’s optimal performance in the intended application.
editor by CX 2024-05-10