Product Description

JMII Type Diaphragm Coupling Without Sinking Hole

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.

                 

JMII Type Diaphragm Coupling Main Dimension(JB/T9147-1999)

Type Nominal torque
Tn
Peak torque
Tmax
Max
Speed
nmax
Bore
Diameter
d,d1
Bore length D D1 t Torsional rigidity×106 Mass Rotary
inertia
J1 type Y
type
L
(recommend)
L
N·m N·m r·min-1 mm N·m/rad kg kg·m2
JMII1 40 63 10700 14 27 32 35 80 39 8±0.2 0.37 0.9 0.0005
16,18,19 30 42
20,22,24 38 52
25,28 44 62
JMII2 63 100 9300 20,22,24 38 52 40 92 53 0.45 1.4 0.0011
25,28 44 62
30,32,35,38 60 82
JMII3 100 200 8400 25,28 44 62 45 102 63 0.56 2.1 0.002
30,32,35,38 60 82
40,42,45 84 112
JMII4 250 400 6700 30,32,35,38 60 82 55 128 77 11±0.3 0.81 4.2 0.006
40,42,45,48,50,55 84 112
JMII5 500 800 5900 35,38 60 82 65 145 91 1.2 6.4 0.012
40,42,45,48,50,55,56 84 112
60,63,65 107 142
JMII6 800 1250 5100 40,42,45,48,50,55,56 84 112 75 168 105 14±0.3 1.42 9.6 0.571
60,63,65,70,71,75 107 142
JMII7 1000 2000 4750 45,48,50,55,56 84 112 80 180 112 15±0.4 1.9 12.5 0.0365
60,63,65,70,71,75 107 142
80 132 172
JMII8 1600 3150 4300 50,55,56 84 112 200 120 2.35 15.5 0.057
60,63,65,70,71,75 107 142
80,85 132 172
JMII9 2500 4000 4200 55,56 84 112 205 120 20±0.4 2.7 16.5 0.065
60,63,65,70,71,75 107 142
80,85 132 172
JMII10 3150 5000 4000 55,56 84 112 90 215 128 20±0.4 3.02 19.5 0.083
60,63,65,70,71,75 107 142
80,85,90 132 172
JMII11 4000 6300 3650 60,63,65,70,71,75 107 142 100 235 132 23±0.5 3.46 25 0.131
80,85,90,95 132 172
JMII12 5000 8000 3400 63,65,70,71,75 107 142 250 145 3.67 30 0.174
80,85,90,95 132 172
100 167 212
JMII13 6300 10000 3200 63,65,70,71,75 107 142 110 270 155 5.2 36 0.239
80,85,90,95 132 172
100,110 167 212
JMII14 8000 12500 2850 65,70,71,75 107 142 115 300 162 27±0.6 7.8 45 0.38
80,85,90,95 132 172
100,110 167 212
JMII15 10000 16000 2700 70,71,75 107 142 125 320 176 8.43 55 0.5
80,85,90,95 132 172
100,110,120,125 167 212
JMII16 12500 20000 2450 75 107 142 140 350 186 32±0.7 10.23 75 0.85
80,85,90,95 132 172
100,110,120,125 167 212
130 202 252
JMII17 16000 25000 2300 80,85,90,95 132 172 145 370 203 10.97 85 1.1
100,110,120,125 167 212
130,140 202 252
JMII18 20000 31500 2150 90,95 132 172 165 400 230 13.07 115 1.65
100,110,120,125 167 212
130,140,150 202 252
160 242 302
JMII19 25000 40000 1950 100,110,120,125 167 212 175 440 245 38±0.9 14.26 150 2.69
130,140,150 202 252
160,170 242 302
JMII20 31500 50000 1850 110,120,125 167 212 185 460 260 22.13 170 3.28
130,140,150 202 252
160,170,180 242 302
JMII21 35500 56000 1800 120,125 167 212 200 480 280 38±0.9 23.7 200 4.28
130,140,150 202 252
160,170,180 242 302
190,200 282 352
JMII22 40000 63000 1700 130,140,150 202 252 210 500 295 24.6 230 5.18
160,170,180 242 302
190,200 282 352
JMII23 50000 80000 1600 140,150 202 252 220 540 310 44±1 29.71 275 7.7
160,170,180 242 302
190,200,220 282 352
JMII24 63000 10000 1450 150 202 252 240 600 335 50±1.2 32.64 380 9.3
160,170,180 242 302
190,200,220 282 352
240 330 410
JMII25 80000 125000 1400 160,170,180 242 302 255 620 350 37.69 410 15.3
190,200,220 282 352
240,250 330 410
JMII26 90000 140000 1300 160 242 302 275 660 385 50.43 510 20.9
190,200,220 282 352
240,250,260 330 410
JMII27 112000 180000 1200 190,200,220 282 352 295 720 410 60±1.4 71.51 620 32.4
240,250,260 330 410
280 380 470
JMII28 140000 20000 1150 220 282 352 300 740 420 93.37 680 36
240,250,260 330 410
280,300 380 470
JMII29 160000 224000 1100 240,250,260 330 410 320 770 450 114.53 780 43.9
280,300,320 380 470
JMII30 180000 280000 1050 250,260 330 410 350 820 490 130.76 950 60.5
280,300,320 380 470
340 450 550

Product 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 CZPT 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
 

Standard Or Nonstandard: Standard
Shaft Hole: 14mm – 340mm
Torque: 40n. M – 180000n. M
Bore Diameter: as Your Requirement
Speed: as Your Requirement
Structure: Flexible
Samples:
US$ 500/Piece
1 Piece(Min.Order)

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Request Sample

Shaft Collar

Choosing the Right PTO Shaft For Your Tractor

There are a number of different PTO shaft types available for your tractor. These include the North American, German and Italian styles. They are also available in various series, each with different options for bearing diameter and cap-to-cap overall length. To choose the best shaft for your tractor, it’s important to know what kind of tractor you own and the type of PTO that you need.

IID shaft

When it comes to choosing the best IID shaft for your PTO, the selection process can be a challenge. Whether you are replacing the shaft in your own tractor or need to purchase one for a client, there are several factors to consider. The right PTO shaft for your tractor should be compatible with the equipment you currently use. For instance, a shaft that can be used in a farm tractor will fit a different farm tractor than one used in a construction machine.
First of all, a safety shield is a critical part of your IID shaft. The shielding will help keep the entire shaft free of any potential hazards. Typically, shielding will cover the straight part of the shaft, universal joints, and PTO connection. A shield can also help protect you from injury if you accidentally run into the shaft or touch the guard.
A power take off shaft will be the best choice if you are using a tractor for other applications, such as mowing, shredding, or plowing. A PTO shaft is also a crucial part if you own a large tractor or implement. It will allow you to operate your equipment with maximum efficiency.
An IID shaft is designed to slide into another piece when the tractor’s PTO is engaged. A disconnected IID shaft can pull the two pieces apart and cause the tractor to swing uncontrollably when it is engaged. This can cause serious injuries or even death. You should not engage a PTO if you aren’t certain of its strength.
To ensure the safety of the driveline shield, check for proper alignment of the PTO shaft. If it isn’t aligned properly, foreign materials can enter the shaft bearings. A damaged driveline shield can also lead to driveline separation, particularly when the tractor is making sharp turns or downhills. In addition, improper alignment of the drawbar may damage the protective shield that protects the shaft.
Choosing the right PTO series size requires proper measuring of each part. Measure the length of each yoke outside the PTO shaft and determine the appropriate PTO series size. The PTO yoke size chart can be helpful when choosing the correct size for your tractor.

Reverse PTO

Many different applications call for a reverse PTO shaft. These adapters allow the PTO shaft to be turned in the opposite direction of the engine, matching the rotation of the power take-off to the rotation of the equipment it drives. They can be used to space the power take-off away from the transmission case and improve clearance for a direct-coupled pump or driveshaft.
Reverse PTO shafts are available for CZPT . They are designed for six-spline 540-rpm applications. They also offer the option of multi-speed operation. Reversed PTOs are a great option for implements that can get stuck.
Reverse PTOs can be used on most types of PTO. The reverse version has a gearbox that allows it to rotate backward. These are ideal for implements that can get stuck in a field. A reverse PTO shaft makes it possible to work with the implement without having to wait for it to get unstuck.
When using a PTO, it’s important to know which type of gearbox is needed. If you have an older model, you’ll probably need a reverse PTO shaft. These are generally used on older, vintage tractors with ground drive PTO. The ground speed pTO shafts match the speed of the tractor’s final drive, so when the tractor is in reverse, the gearbox will turn backward. This feature will not function if you’re working stationary, though.
A tractor with a reverse PTO is important for a number of reasons. For example, the reverse PTO can help you turn a stuck tractor in the opposite direction, which is useful when a piece of farm equipment becomes stuck in mud or when you need to push a stuck implement back. In addition, it allows you to use the tractor’s power to operate various implements. The reverse PTO also helps you know how much power is needed to run various implements on various terrain.
In addition to being convenient, reverse PTO shafts also help reduce the risk of damage to implements attached to the PTO. It’s vital to keep a PTO shaft in good working order.
Shaft Collar

Square rigid shaft

When you are looking for a new square rigid PTO shaft, you should consider a few factors. Choosing the right one can be a challenge, as the process is not always simple. For instance, there are a lot of choices when it comes to different brands and interpretations. You can even choose to purchase a square rigid shaft that is not square.
Torsional rigidity is a measure of the ability of a shaft to resist torsional forces. The higher the value of J, the more rigid the shaft will be. For example, a steel shaft has a higher torsional rigidity than an HDPE shaft. The correct value of J can have a big impact on the design decisions.
Another factor to consider is the type of shaft coupling. Rigid shaft couplings are best for shafts that are perfectly aligned. While flexible couplings are flexible enough to accommodate small misalignments, they are not as flexible as the flexible ones. Rigid shaft couplings, which are typically made of metal, are not designed for high-speed rotation.
Rigid couplings are a good choice for a wide range of applications. Rigid couplings are available in many sizes and configurations, and can be used with either a powered or an unsupported shaft. Rigid couplings are also available with keyways to transmit torque.
Torsional rigidity depends on the geometry of the components. A higher torsional rigidity means a shaft is more resilient to twisting. However, excessive twisting can result in unstable performance. As a result, it is important to avoid over-twisting a shaft.
Flange couplings are another option. These couplings have two flanges that are attached to each other with bolts or nuts. They are very similar to split muff couplings and sleeve couplings. The difference is that flange couplings have two flanges – one for the shaft and one for the coupling hub.
If you are thinking about purchasing a square rigid PTO shaft for your tractor, be sure to consider the features that will best serve your specific needs. While you may be considering the price of this new shaft, remember that it is a machine part that could be dangerous.
Shaft Collar

Economy PTO

There are several standard types of PTO shafts. They can vary in diameter and number of splines, and are designed to work with a specific speed range. The following are the main differences between these types. Choosing the right type for your application will depend on its application. One of the most important considerations to make when choosing a PTO shaft is the ratio between the shaft’s diameter and the toothed wheels that are attached to it.
When choosing a PTO shaft, consider the amount of torque you need. In general, an economy PTO shaft should be able to support a maximum load of 540 Nm. In addition, it should be able to handle a high-speed output. An economy PTO shaft may need less torque than a high-performance model.
Economy PTO shafts come in two basic styles: North American and Italian. These two types are designed to provide constant-speed output and balance the power input of a tractor. There are also various other styles of PTO shafts available, including square and rectangular half-shaft assemblies. You can also purchase extra parts to repair a worn PTO shaft.
The control/monitoring unit in a PTO includes a screen display and a manual control for selecting engaged or disengaged PTO states. In addition, there is a switch in the cab mounted control unit 14 that selects normal and economy modes when driving the PTO. These modes utilize different gears to achieve the desired PTO shaft revs.
To select the right PTO speed, select the lever in economy mode and increase the throttle to the appropriate rpm. The PTO speed should be 540 RPM. The control/monitoring unit 14 will use this information to adjust the clutch control parameters. In addition to the PTO speed, it will also display the torque on the PTO shaft.
Economy PTO shafts are ideal for a variety of applications. These PTOs allow the tractor to run at lower rpms, thereby reducing noise and vibrations. They are typically available in both hydraulic and mechanical types.
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editor by CX 2023-05-26