Product Description

Plum Elastic Coupling(GB/T5272-2002) 

Plum elastic coupling has the characteristics of vibration reduction, buffering, small radial size, no lubrication, and easy maintenance. Suitable for starting frequency, positive and negative rotation, medium and low speed, medium and small power transmission.Not suitable for heavy loads and frequent replacement of elastic elements.

The structure of plum elastic coupling is simple. But when the elastic element is replaced, the half coupling shall be moved axially.LMS type is easy to replace the elastic component without having to move the half coupling.

  Basic Parameter And Main Dimension(GB/T5014-2003)

Type	Nominal torque(Tn/N·m)		Speed(Np)		Shaft hole diameter (d1,d2,dz)	Length of shaft hole			LO			D	D1	Type of elastic parts	Mass			Rotary inertia
	Hardness of elastic parts		LM	LMD,LMS		Y type	J1,Z type	L (recommend)	LM	LMD	LMS		LMD,LMS		LM	LMD	LMS			LM	LMD	LMS
	a/HA	b/HD				L
	80+5	60+5	r·min-1		Mm										kg				kg·m2
LM1 LMD1 LMS1	25	45	15300	8500	12,14	32	27	35	86	92	98	50	90	MT1-a  -b	0.66	1.21	1.33			0.0002	0.0008	0.0013
					16,18,19	42	30
					20,22,24	52	38
					25	62	44
LM2 LMD2 LMS2	50	100	1200	7600	16,18,19	42	30	38	95	101.5	108	60	100	MT2-a  -b	0.93	1.65	1.74			0.0004	0.0014	0.0571
					20,22,24	52	38
					25,28	62	44
					30	82	60
LM3 LMD3 LMS3	100	200	10900	6900	20,22,24	52	38	40	103	110	117	70	110	MT3-a  -b	1.41	2.36	2.33			0.0009	0.0571	0.0034
					25,28	62	44
					30,32	82	60
LM4 LMD4 LMS4	140	280	9000	6200	22,24	52	38	45	114	122	130	85	125	MT4-a  -b	2.18	3.56	3.38			0.002	0.005	0.0064
					25,28	62	44
					30,32,35,38	82	60
					40	112	84
LM5 LMD5 LMS5	350	400	7300	5000	25,28	62	44	50	127	138.5	150	105	150	MT5-a  -b	3.60	6.36	6.07			0.005	0.0135	0.0175
					30,32,35,38	82	60
					40,42,45	112	84
LM6 LMD6 LMS6	400	710	6100	4100	30,32,35,38	82	60	55	143	155	167	185	185	MT6-a  -b	6.07	10.77	10.47			0.0114	0.0329	0.0444
					40,42,45,48	112	84
LM7 LMD7 LMS7	630	1120	5300	3700	35*,38*	82	60	60	159	172	185	205	205	MT7-a  -b	9.09	15.30	14.22			0.5712	0.0581	0.571
					40*,42*,45,48,50,55	112	84
LM8 LMD8 LMS8	1120	2240	4500	3100	45*,48*,50,55,56	112	84	70	181	195	209	170	240	MT8-a  -b	13.56	22.72	21.16			0. 0571	0.1175	0.1493
					60,63,65	142	107
LM9 LMD9 LMS9	1800	3550	3800	2800	50*,55*,56*	112	84	80	208	224	240	200	270	MT9-a  -b	21.40	34.44	30.70			0.1041	0.2333	0.2767
					60,63,65,70,71,75	142	107
					80	172	132
LM10 LMD10 LMS10	2800	5600	3300	2500	60*,63*,65*,70,71,75	142	107	90	230	248	268	230	305	MT10-a  -b	32.03	51.36	44.55			0.2105	0.4594		0.5262
					80,85,90,95	172	132
					100	212	167
LM11 LMD11 LMS11	4500	9000	2900	2200	71*,71*,75*	142	107	100	260	284	308	260	350	MT11-a  -b	49.52	81.30	70.72			0.4338	0.9777		1.1362
					80*,85*,90,95	172	132
					100,110,120	212	167
LM12 LMD12 LMS12	6300	12500	2500	1900	80*,85*,90*95	172	132	115	297	321	345	300	400	MT12-a  -b	73.45	115.53	99.54			0.8205	1.751		1.9998
					100,110,120,125	212	167
					130,140,150	252	202
LM13 LMD13 LMS13	11200	2000	2100	1600	90*,95*	172	132	125	323	348	373	360	460	MT13-a  -b	103.86	161.79	137.53			1.6718	3.667		3.6719
					100*,110*,120*,125*	212	167
					130,140,150	252	202
LM14 LMD14 LMS14	12500	25000	1900	1500	100*,110*,120*,125*	212	167	135	333	358	383	400	500	MT14-a  -b	127.59	196.32	165.25			2.499	4.8669		5.1581
					130*,140*,150	252	202
					160	302	242

NOTE:
1. Mass and rotary inertia are the approximation calculated according to the recommended minimum axial hole.
2. Diameter of shaft hole with* can be used for Z-type shaft hole.
3. a.b is the code for 2 different materials and the hardness of elastic parts.

♦Product Show

♦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 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 new models when there are new cars in the market.

5. Quality Control
Every step should be a particular 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 customers with customized PDF or AI format artworks.

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 an excellent 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 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 /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

View More

Use of Flexible Flange Couplings in Applications Requiring Electrical Isolation

Yes, flexible flange couplings can be used in applications requiring electrical isolation between shafts. In certain industrial scenarios, it is essential to electrically isolate the connected equipment or shafts to prevent the flow of electrical current between them. This requirement is common in applications involving sensitive electronic components, motors, generators, or systems where grounding issues need to be avoided.

To achieve electrical isolation, flexible flange couplings can be designed using non-conductive or insulating materials. Some key considerations for using flexible flange couplings in such applications are as follows:

1. Material Selection: Instead of metallic materials commonly used in standard couplings, such as steel or aluminum, the flexible flange couplings for electrical isolation purposes can be manufactured from non-conductive materials like thermoplastics, certain composites, or specially formulated insulating elastomers.
2. Insulating Sleeve: Some flexible flange couplings may feature an insulating sleeve or barrier between the two flanges. This sleeve prevents direct contact between the flanges and acts as an electrical barrier, ensuring isolation between the shafts.
3. Dielectric Strength: When selecting materials for electrical isolation, it is crucial to consider their dielectric strength, which determines the maximum voltage they can withstand without breakdown. The materials chosen should have adequate dielectric strength to suit the application’s electrical requirements.
4. Performance Considerations: It is important to note that while achieving electrical isolation, the selected materials should still meet the necessary performance criteria for the specific application. The coupling must retain its ability to transmit torque, accommodate misalignment, and provide damping characteristics as required.
5. Environmental Factors: Consideration should also be given to the environmental conditions of the application, such as temperature, humidity, and chemical exposure. The chosen materials should be compatible with the operating environment to ensure long-term reliability.

By carefully selecting appropriate materials and incorporating insulating features, flexible flange couplings can effectively provide electrical isolation between shafts while fulfilling the mechanical and functional requirements of the machinery or equipment. This enables the safe and reliable operation of electrical systems without the risk of electrical currents passing through the coupling and connected components.

Where to Find Reputable Suppliers or Manufacturers of Flexible Flange Couplings for Your Specific Power Transmission Needs?

When looking for reputable suppliers or manufacturers of flexible flange couplings, consider the following steps:

1. Online Research: Start by conducting online research to identify companies that specialize in power transmission components, including flexible flange couplings. Look for manufacturers with a strong reputation, positive customer reviews, and a history of delivering high-quality products.
2. Industry Directories: Industry-specific directories and trade publications often feature listings of suppliers and manufacturers. These directories can be a valuable resource to find companies that offer flexible flange couplings tailored to your industry’s needs.
3. Trade Shows and Exhibitions: Attend trade shows and exhibitions related to power transmission, where you can meet suppliers in person, examine product samples, and discuss your specific requirements.
4. Referrals and Recommendations: Seek referrals or recommendations from industry peers, colleagues, or professionals who have experience with flexible flange couplings. Their insights can lead you to reliable suppliers.
5. Supplier Websites: Visit the websites of potential suppliers to gather detailed information about their products, manufacturing processes, certifications, and capabilities. Look for suppliers with a comprehensive product range and customization options.
6. Quality and Certifications: Verify if the supplier follows industry standards and has relevant certifications such as ISO, ASME, or API. These certifications demonstrate their commitment to quality and compliance.
7. Technical Support: Evaluate the technical support and customer service provided by the supplier. A reliable supplier should be responsive to your queries, offer guidance on selecting the right coupling, and provide after-sales support.
8. Sample and Testing: Request samples of the flexible flange couplings to evaluate their quality and suitability for your application. Some suppliers may also offer testing services to validate the performance of their products.
9. Price and Delivery: Obtain quotes from multiple suppliers to compare prices, delivery times, and shipping costs. However, prioritize quality and reliability over cost alone.

By following these steps, you can find reputable suppliers or manufacturers that can meet your specific power transmission needs with high-quality flexible flange couplings. Remember to conduct thorough research and consider factors beyond price to ensure you choose a supplier that can provide durable and efficient couplings for your application.

Flexible Flange Coupling in Mechanical Power Transmission

A flexible flange coupling is a type of coupling used to connect two shafts and transmit mechanical power from one shaft to another. It is designed to accommodate misalignment, parallel, angular, and axial, between the connected shafts. The coupling consists of two flanges with interlocking teeth or ridges on their mating faces, and a flexible element, often made of elastomeric material, positioned between the flanges.

The function of a flexible flange coupling in mechanical power transmission is as follows:

1. Compensation for Misalignment: One of the primary functions of a flexible flange coupling is to compensate for misalignment between the shafts. Misalignment can occur due to various factors, such as manufacturing tolerances, thermal expansion, or vibrations. The flexible element allows the flanges to move relative to each other, accommodating both angular and parallel misalignments without imposing significant loads on the connected machinery.
2. Shock Absorption: The flexible element in the coupling acts as a shock absorber, dampening sudden shocks and vibrations that may arise from the equipment or system. This helps protect the machinery from damage and minimizes wear and tear, enhancing the overall service life of the system.
3. Torsional Flexibility: Flexible flange couplings offer torsional flexibility, allowing them to transmit torque smoothly between the shafts, even when the two shafts are not perfectly aligned. This capability is essential in applications where there are frequent starts, stops, or changes in load, as it reduces the risk of stress concentration and premature failure.
4. Isolation of Vibrations: Vibrations generated in one shaft due to imbalances, misalignment, or other factors can be isolated from the other shaft by the flexible element, preventing the vibrations from propagating throughout the entire system and reducing noise levels.
5. Easy Installation and Maintenance: Flexible flange couplings are relatively easy to install and maintain. The split design of the flanges allows them to be assembled around the shafts without the need to disassemble the entire system. This feature simplifies installation and reduces downtime during maintenance.

Conclusion: Flexible flange couplings play a crucial role in mechanical power transmission by providing a flexible and reliable connection between rotating shafts. Their ability to compensate for misalignment, absorb shocks, transmit torque smoothly, and isolate vibrations makes them suitable for a wide range of applications in various industries.

editor by CX 2024-05-02