Product Description

LMS Double Flange Type Plum Elastic Coupling(GB/T 5272-2002)

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 easily replaces the elastic element without having to move the half coupling.

♦Basic Parameter and Main Dimension

Type	Norminal torque(Tn/N·m)		Speed(Np)		Shaft hole diameter (d1,d2,dz)	Length of the shaft hole			LO			D	D1	Type of elastic parts	Mass			Rotary inertia
	The 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. 

♦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 the new model when there is new cars in the market.

5. Quality Control
Every step should be a special 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 the customers with customized artworks in 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 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 1 pcs.

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: T/T.  
 

♦Contact Us

Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China

Are there any industry standards or guidelines for designing and using spider couplings?

Yes, there are industry standards and guidelines that provide recommendations for designing, selecting, and using spider couplings in various mechanical systems. These standards help ensure the safe and reliable operation of spider couplings in industrial applications. Some of the relevant standards include:

• AGMA 9002-B15: This American Gear Manufacturers Association (AGMA) standard provides guidelines for the selection and application of flexible couplings, including spider couplings. It covers topics such as coupling types, misalignment, torque capacity, and lubrication.
• ISO 14691: This International Organization for Standardization (ISO) standard specifies methods for testing the torsional stiffness of flexible couplings, including spider couplings. It outlines procedures for determining the dynamic torsional stiffness and related parameters.
• API 671: This American Petroleum Institute (API) standard provides guidelines for special-purpose couplings used in petroleum, chemical, and gas industry services. It covers design, manufacturing, inspection, and testing requirements for couplings, including those with elastomeric elements.

While these standards offer valuable insights, it’s important to note that specific industry requirements and applications may influence the design and selection of spider couplings. Manufacturers, engineers, and designers should also consider factors such as torque, misalignment compensation, environment, and system dynamics when applying these standards to their designs. Adhering to industry standards ensures that spider couplings are properly designed, installed, and used to meet the intended performance and safety criteria.

Are there any recent advancements or innovations in spider coupling technology?

Yes, there have been several recent advancements and innovations in spider coupling technology aimed at enhancing their performance, durability, and versatility. Some of the notable advancements include:

• Advanced Materials: Manufacturers are using new elastomeric materials that offer improved resistance to wear, temperature fluctuations, and chemicals. These materials extend the lifespan of spider couplings and broaden their range of applications.
• Enhanced Designs: Innovative design improvements are being made to optimize torque transmission, misalignment compensation, and vibration dampening. These designs aim to provide better coupling performance in various operating conditions.
• Customization: Some manufacturers offer customizable spider couplings to match specific application requirements. This includes tailoring the coupling’s stiffness, torque capacity, and damping characteristics to suit different machinery and industries.
• Smart Couplings: Integration of sensors and monitoring technology into spider couplings allows real-time data collection on factors such as temperature, vibration, and load distribution. This data helps in predictive maintenance and optimizing equipment performance.
• Composite Couplings: Composite materials are being utilized in spider couplings to provide a balance between lightweight design, high strength, and corrosion resistance. These couplings find applications in industries where weight reduction and durability are critical.
• Energy Efficiency: Some spider couplings are designed with energy efficiency in mind, aiming to reduce power losses due to damping while maintaining reliable torque transmission.

These advancements demonstrate the ongoing efforts to enhance spider coupling technology, making them more adaptable to modern machinery requirements. As technology continues to evolve, spider couplings are becoming increasingly sophisticated and capable of meeting the challenges posed by various industries and applications.

How do you properly install and maintain a spider coupling in machinery?

Installation:

Proper installation of a spider coupling is essential to ensure its optimal performance and longevity. Here are the steps for installing a spider coupling:

1. Ensure Safety: Before starting any installation, make sure the machinery is properly shut down and all energy sources are disconnected.
2. Inspect Components: Check the hubs, elastomeric spider, and shafts for any damage or debris. Ensure that the components match the correct specifications.
3. Align Shafts: Align the shafts to minimize initial misalignment before inserting the elastomeric spider.
4. Insert Spider: Place the elastomeric spider into one of the hubs, ensuring that the lobes or fins are correctly aligned with the grooves in the hub.
5. Align Second Hub: Carefully align the second hub with the first one, making sure the spider lobes fit into the grooves of both hubs.
6. Press Hubs Together: Gently press the hubs together until they meet. Avoid using excessive force, as this could damage the elastomeric spider.
7. Check Alignment: After installation, check the alignment of the shafts and the coupling. Misalignment should not exceed the manufacturer’s recommended limits.
8. Tighten Fasteners: Tighten the fasteners on the hubs according to the manufacturer’s torque specifications. Use a torque wrench to ensure proper tightening.
9. Verify Clearance: Check for proper clearance between the coupling and surrounding components to prevent interference during operation.
10. Run System: Start the machinery and monitor the coupling for any unusual vibrations or noise. Make any necessary adjustments if issues are detected.

Maintenance:

Maintaining a spider coupling is important to ensure its continued performance and prevent premature failure. Here are some maintenance tips:

• Regular Inspection: Periodically inspect the spider coupling for signs of wear, damage, or deterioration. Look for cracks, tears, or other abnormalities in the elastomeric spider.
• Clean Environment: Keep the coupling and surrounding area clean from dirt, debris, and contaminants that could impact its performance.
• Lubrication: Spider couplings are self-lubricating due to the elastomeric material. Avoid using additional lubricants, as they can deteriorate the elastomeric properties.
• Temperature Consideration: Be aware of the temperature range specified by the manufacturer for the elastomeric material. Extreme temperatures can affect the performance and lifespan of the coupling.
• Replace Worn Parts: If the elastomeric spider shows signs of wear, replace it with a new one from the manufacturer. Do not continue using a worn or damaged spider.
• Monitor Vibrations: Regularly monitor the machinery for unusual vibrations or noise, as these can indicate issues with the coupling. Address any problems promptly.
• Follow Manufacturer Guidelines: Adhere to the manufacturer’s recommended maintenance schedule and guidelines for the specific spider coupling model.

Proper installation and regular maintenance contribute to the reliable and efficient operation of a spider coupling in machinery.

editor by CX 2023-11-27