Product Description

 

JMII Type Diaphragm Coupling(JB/T9147-1999)

JMII Elastic Diaphragm Coupling belong to JM series diaphragm couplings. They are made up of several groups of diaphragms (stainless steel thin wrench), and bolts are interlaced with 2 halves of couplings. Each diaphragm is made up of several sheets. The diaphragm is divided into connecting rod type and whole shape with different shapes. Its elastic deformation is used to compensate the relative displacement of the 2 axes, and it is a high performance flexible coupling of metal elastic elements. No lubrication, compact structure, high strength, long service life, no rotation clearance, no influence on temperature and oil pollution, it has the characteristics of acid resistance, alkali resistance and corrosion resistance.

Product Parameters

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

 

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.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China
 

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Specific Safety Precautions When Working with Shaft Couplings

Working with shaft couplings involves handling rotating machinery and mechanical components. To ensure the safety of personnel and prevent accidents, specific safety precautions should be followed during installation, maintenance, and operation:

1. Lockout-Tagout (LOTO):

Prior to any work on machinery involving couplings, implement a lockout-tagout procedure to isolate the equipment from its power source. This ensures that the machinery cannot be accidentally energized during maintenance or repair, protecting workers from potential hazards.

2. Personal Protective Equipment (PPE):

Always wear appropriate personal protective equipment (PPE), including safety goggles, gloves, and appropriate clothing, when working with shaft couplings. PPE helps protect against potential hazards such as flying debris, sharp edges, or contact with moving parts.

3. Proper Training and Supervision:

Only trained and authorized personnel should work with shaft couplings. Ensure that workers have the necessary knowledge and experience to handle the equipment safely. Adequate supervision may be required, especially for less-experienced personnel.

4. Inspection and Maintenance:

Regularly inspect shaft couplings and associated components for signs of wear, damage, or misalignment. Address any issues promptly to prevent equipment failure and potential accidents.

5. Follow Manufacturer’s Guidelines:

Adhere to the manufacturer’s instructions and guidelines for installation, operation, and maintenance of the specific coupling model. Improper use or deviation from recommended procedures may compromise safety and void warranties.

6. Avoid Overloading:

Do not exceed the torque and speed limits specified by the coupling manufacturer. Overloading a coupling can lead to premature failure and pose safety risks to operators and nearby equipment.

7. Shaft Guards and Enclosures:

Install appropriate guards and enclosures to prevent accidental contact with rotating shafts and couplings. These safety measures help reduce the risk of entanglement and injuries.

8. Zero Energy State:

Ensure that all stored energy in the equipment, such as compressed air or hydraulic pressure, is released and the equipment is in a zero energy state before starting work.

9. Avoid Loose Clothing and Jewelry:

Remove or secure loose clothing, jewelry, and other items that could get caught in moving parts.

10. Maintain a Clean Work Area:

Keep the work area clean and free from clutter to avoid tripping hazards and facilitate safe movement around the machinery.

By following these safety precautions, personnel can minimize the risks associated with working with shaft couplings and create a safer working environment for everyone involved.

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Temperature and Speed Limits for Different Shaft Coupling Types

The temperature and speed limits of shaft couplings vary depending on the materials and design of the coupling. Manufacturers provide specific guidelines and ratings for each coupling type. Below are general temperature and speed limits for some common shaft coupling types:

1. Elastomeric Couplings:

Elastomeric couplings, such as jaw couplings and tire couplings, typically have temperature limits ranging from -40°C to 100°C (-40°F to 212°F). The speed limits for elastomeric couplings are generally up to 5,000 RPM, but some designs may allow higher speeds.

2. Metallic Couplings:

Metallic couplings, like gear couplings and disc couplings, can handle a wider temperature range, typically from -50°C to 200°C (-58°F to 392°F). The speed limits for metallic couplings vary based on the size and design, but they can range from 3,000 RPM to over 10,000 RPM.

3. Grid Couplings:

Grid couplings have temperature limits similar to metallic couplings, ranging from -50°C to 200°C (-58°F to 392°F). The speed limits for grid couplings are typically in the range of 3,000 to 5,000 RPM.

4. Oldham Couplings:

Oldham couplings usually have temperature limits from -30°C to 100°C (-22°F to 212°F) and speed limits ranging from 1,000 to 5,000 RPM.

5. Beam Couplings:

Beam couplings generally have temperature limits from -40°C to 120°C (-40°F to 248°F) and speed limits between 5,000 to 10,000 RPM.

6. Fluid Couplings:

Fluid couplings are suitable for a wide range of temperatures, often from -50°C to 300°C (-58°F to 572°F). The speed limits depend on the size and design of the fluid coupling but can extend to several thousand RPM.

It’s important to note that these are general guidelines, and the actual temperature and speed limits may vary based on the specific coupling manufacturer, material quality, and application requirements. Always refer to the manufacturer’s documentation and technical specifications for accurate and up-to-date temperature and speed limits for a particular shaft coupling model.

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Types of Shaft Couplings and Their Applications in Various Industries

Shaft couplings come in various types, each designed to meet specific application requirements and address different types of misalignment. Here are some common types of shaft couplings and their applications in various industries:

1. Jaw Couplings:

Applications: Jaw couplings are widely used in power transmission applications, including conveyor systems, pumps, compressors, and industrial machinery. They are suitable for moderate torque requirements and provide good misalignment compensation.

2. Gear Couplings:

Applications: Gear couplings are used in heavy-duty industrial applications such as steel mills, paper mills, and mining equipment. They offer high torque capacity and can handle significant misalignments.

3. Disc Couplings:

Applications: Disc couplings are commonly used in precision machinery and automation systems, such as printing presses, machine tools, and robotics. They provide excellent torsional stiffness and are ideal for applications requiring precise positioning.

4. Grid Couplings:

Applications: Grid couplings are used in various industrial applications, including fans, pumps, and compressors. They offer high torque capacity and good shock absorption.

5. Oldham Couplings:

Applications: Oldham couplings are used in applications requiring high misalignment compensation, such as stepper motor drives and motion control systems.

6. Diaphragm Couplings:

Applications: Diaphragm couplings are used in critical applications that demand high torque transmission accuracy, such as aerospace, medical equipment, and semiconductor manufacturing.

7. Elastomeric Couplings:

Applications: Elastomeric couplings, like spider couplings, find applications in general industrial machinery, HVAC systems, and conveyor systems. They provide damping properties and flexibility to accommodate misalignments.

8. Torsionally Rigid Couplings:

Applications: Torsionally rigid couplings are used in applications requiring precise torque transmission, such as precision machining equipment and high-speed spindles.

9. Fluid Couplings:

Applications: Fluid couplings are used in heavy machinery and drivetrains, such as mining equipment, crushers, and marine propulsion systems. They provide smooth acceleration and dampening of shock loads.

10. Magnetic Couplings:

Applications: Magnetic couplings are used in applications where hermetic sealing is required, such as chemical processing, pumps, and mixers. They allow for torque transmission without direct physical contact.

The selection of the appropriate shaft coupling type depends on factors such as torque requirements, speed, misalignment, operating conditions, and the specific needs of the application. Using the right coupling ensures efficient power transmission, protects equipment from misalignment-related issues, and enhances the overall reliability and performance of industrial machinery and systems.

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editor by CX 2024-01-25