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.
Product Parameters
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 |
Detailed Photos
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 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. We company actively introduce 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.
After Sales Service
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.11HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China
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Materials Used to Manufacture Diaphragm Couplings and Their Impact on Performance
Diaphragm couplings are manufactured using various materials, and the choice of material significantly impacts their performance in different applications. Here are some common materials used in diaphragm couplings and their impact on performance:
- Metallic Alloys:
- High-Temperature Alloys:
- Titanium:
- Elastomers:
- Non-Metallic Materials:
Stainless steel and other high-strength metallic alloys are widely used in diaphragm couplings. These materials offer excellent durability, high torsional stiffness, and resistance to wear and fatigue. They are well-suited for high-torque applications and environments with demanding operating conditions.
In applications where diaphragm couplings are exposed to elevated temperatures, specialized high-temperature alloys like Inconel and Hastelloy are used. These alloys can withstand extreme heat without losing their mechanical properties, making them ideal for use in industries such as steel processing and power generation.
Titanium is favored for its lightweight and excellent corrosion resistance. Diaphragm couplings made from titanium are commonly used in aerospace and marine applications where weight reduction and resistance to corrosive environments are critical.
For certain applications that require vibration dampening and shock absorption, diaphragm couplings can be manufactured with elastomeric materials like rubber or urethane. These materials help reduce transmitted vibrations and can be found in pumps, compressors, and automotive drivetrain systems.
In situations where electrical isolation or non-magnetic properties are necessary, non-metallic materials like PTFE (Teflon) or polypropylene may be used. These materials are also highly resistant to chemical corrosion, making them suitable for certain chemical processing and semiconductor applications.
The choice of material impacts several aspects of diaphragm coupling performance, including:
- Torsional Stiffness: Metallic alloys and high-temperature materials provide high torsional stiffness, ensuring efficient torque transmission and accuracy in motion control applications.
- Corrosion Resistance: The selection of corrosion-resistant materials is crucial in applications where diaphragm couplings are exposed to corrosive environments, such as in marine or chemical industries.
- Temperature Resistance: High-temperature alloys enable diaphragm couplings to operate effectively in environments with elevated temperatures, such as steel processing or power generation plants.
- Weight: Materials like titanium offer lightweight advantages, making diaphragm couplings suitable for aerospace and other weight-sensitive applications.
- Vibration Damping: Elastomeric materials provide excellent vibration dampening properties, reducing vibrations and noise in certain applications.
Manufacturers carefully select the appropriate material based on the specific requirements of the application to ensure optimal performance and reliability of the diaphragm coupling in a wide range of industries.
Can Diaphragm Couplings Reduce Noise and Dampen Vibrations in Mechanical Systems?
Yes, diaphragm couplings can help reduce noise and dampen vibrations in mechanical systems. The design and material properties of diaphragm couplings contribute to their ability to minimize vibrations and noise during operation. Here’s how diaphragm couplings achieve this:
- Vibration Dampening:
- Misalignment Compensation:
- Reduced Mechanical Resonance:
- Smooth Torque Transmission:
- Compact Design:
Diaphragm couplings are designed to be flexible and allow a controlled amount of movement between the connected shafts. This flexibility helps dampen vibrations generated during the operation of rotating machinery. When vibrations occur due to load changes or misalignments, the diaphragm absorbs and dissipates these vibrations, preventing them from propagating through the system. As a result, diaphragm couplings can contribute to a smoother and quieter operation of mechanical systems.
As mentioned earlier, diaphragm couplings can accommodate axial, angular, and parallel misalignments between the connected shafts. Misalignment in rotating machinery can lead to increased vibrations and noise. By effectively compensating for misalignment, diaphragm couplings help maintain proper shaft alignment, reducing the risk of vibration-related issues and associated noise.
Mechanical resonance occurs when the natural frequency of a system matches the excitation frequency. It can lead to amplified vibrations and noise. Diaphragm couplings, with their ability to dampen vibrations, can help reduce the occurrence of mechanical resonance in rotating systems. By preventing the build-up of excessive vibrations, diaphragm couplings minimize the likelihood of resonance-related problems.
Diaphragm couplings provide smooth torque transmission between the shafts, resulting in a more uniform and stable power transfer. When torque is transmitted smoothly, there is less likelihood of sudden torque fluctuations that can cause vibrations and noise. The controlled flexibility of the diaphragm ensures that torque is transmitted efficiently, without introducing undesirable harmonics or disturbances in the system.
Diaphragm couplings have a compact and lightweight design compared to some other coupling types, such as gear couplings. This reduced mass and size help minimize inertial forces during operation, leading to lower levels of vibration and noise.
Overall, diaphragm couplings are effective in reducing noise and dampening vibrations in mechanical systems, making them suitable for applications where noise reduction and smooth operation are essential. Their ability to handle misalignments, dampen vibrations, and transmit torque accurately contributes to improved performance and reliability in various industrial settings.
How Do Diaphragm Couplings Handle Misalignment Between Shafts and Reduce Vibrations?
Diaphragm couplings are designed to handle misalignment between shafts and reduce vibrations effectively. Here’s how they achieve these functionalities:
- Misalignment Handling: Diaphragm couplings can accommodate three types of misalignment: angular, parallel, and axial misalignment.
- Angular Misalignment: When the shafts are not perfectly aligned and have angular offset, the flexible diaphragm in the coupling can flex and bend, allowing for relative movement between the shafts without transmitting excessive torque loads or inducing stress on the machinery.
- Parallel Misalignment: In cases where the shafts have parallel misalignment (i.e., horizontal offset), the diaphragm can also flex and move laterally to accommodate the misalignment while maintaining a continuous connection between the two hubs.
- Axial Misalignment: Diaphragm couplings can also handle axial misalignment (i.e., axial displacement), as the flexible diaphragm can compress or elongate slightly to adjust for the axial movement of the shafts.
- Vibration Reduction: Diaphragm couplings are known for their ability to dampen vibrations, which helps in reducing vibration levels in the connected machinery and the overall mechanical system.
- Flexible Diaphragm: The key component that enables vibration reduction is the flexible diaphragm. As the diaphragm flexes in response to misalignment or torque loads, it absorbs and dissipates vibrations, preventing them from being transmitted through the coupling and into the system.
- Natural Frequency: The design of the diaphragm is tuned to have a specific natural frequency, which allows it to effectively dampen and attenuate vibrations within the desired range.
- Material Selection: The choice of material for the diaphragm is crucial in determining its vibration damping capabilities. Certain materials have better vibration-absorbing properties, making them ideal for use in diaphragm couplings.
In summary, diaphragm couplings handle misalignment between shafts by using the flexible diaphragm to accommodate angular, parallel, and axial misalignment. Additionally, they reduce vibrations by utilizing the same flexible diaphragm to dampen and absorb vibrations, enhancing the smooth operation and longevity of the connected machinery and mechanical systems.
editor by CX 2024-05-06