China Custom CHINAMFG Lms Type Double Flange No Lubrication Torque Rotational Speed Spider Couplings

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

 

 

Company Profile

 

♦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 26 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

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Can a spider coupling handle high levels of torque and angular misalignment?

Yes, a spider coupling is designed to handle a range of torque levels and accommodate angular misalignment. The elastomeric spider element, which is a key component of the coupling, provides the flexibility needed to transmit torque and compensate for misalignment. Here’s how a spider coupling handles these factors:

• High Torque: Spider couplings are engineered to transmit torque efficiently. The elastomeric spider deforms slightly under torque load, allowing it to transfer power between the shafts. The specific torque capacity depends on the design, materials, and size of the coupling. High-performance spider couplings can handle significant torque loads, making them suitable for various industrial applications.
• Angular Misalignment: Spider couplings can accommodate angular misalignment between the connected shafts. The elastomeric spider can flex in different directions, allowing for a certain degree of angular deviation between the shafts. This flexibility helps prevent excessive stress on the shafts and components, enhancing the coupling’s lifespan and reliability.

However, it’s important to note that while spider couplings can handle a range of torque levels and angular misalignment, there are limitations to how much misalignment they can compensate for. Excessive misalignment can lead to premature wear and reduced coupling performance. It’s recommended to follow the manufacturer’s guidelines for allowable misalignment and torque capacity to ensure optimal coupling performance and longevity.

Can you explain the concept of torsional stiffness in relation to spider couplings?

Torsional stiffness is a crucial concept in the design and functionality of spider couplings. It refers to the ability of a coupling to resist rotational deformation (twisting) when subjected to a torque load. In other words, torsional stiffness measures how much a coupling can maintain its shape and transmit torque without excessive twisting or deformation.

In the context of spider couplings:

• High Torsional Stiffness: A coupling with high torsional stiffness exhibits minimal angular deflection or twisting when torque is applied. This ensures accurate torque transmission and precise alignment between connected shafts. High torsional stiffness is especially important in applications that require accurate positioning and synchronization.
• Low Torsional Stiffness: A coupling with low torsional stiffness allows for some degree of angular misalignment between shafts and can accommodate slight variations in torque load. This flexibility can be advantageous in applications where misalignment or shock absorption is necessary.

When selecting a spider coupling for a specific application, the torsional stiffness of the coupling needs to be considered based on the requirements of the machinery system. The choice between high and low torsional stiffness depends on factors such as the level of precision needed, the type of load, the degree of misalignment, and the overall performance objectives.

It’s important to note that while torsional stiffness is a key consideration, other factors like the material of the elastomeric spider, size of the coupling, and the type of spider profile also play a role in the coupling’s overall performance and behavior.

Can you explain the role of the elastomeric spider in a spider coupling’s function?

The elastomeric spider plays a critical role in the function of a spider coupling by providing flexibility, misalignment compensation, and vibration dampening. It is the central component that connects the two hubs of the coupling and transmits torque between the shafts. The elastomeric spider is typically made from a durable and resilient elastomer material, such as rubber or polyurethane. Here’s how the elastomeric spider contributes to the spider coupling’s operation:

• Flexibility: The elastomeric material of the spider allows it to flex and deform as torque is transmitted between the shafts. This flexibility accommodates misalignment between the shafts, including angular, radial, and axial misalignment.
• Misalignment Compensation: The spider coupling’s design incorporates the elastomeric spider’s ability to stretch and compress. This allows it to absorb and compensate for minor misalignments that can occur due to manufacturing tolerances, thermal expansion, or external forces.
• Vibration Dampening: The elastomeric material of the spider acts as a cushion, absorbing and dampening vibrations that may be generated during operation. This reduces the transmission of vibrations from one shaft to another and contributes to smoother machinery performance.
• Torque Transmission: As the shafts rotate and torque is applied to one hub of the coupling, the elastomeric spider deforms to transmit the torque to the other hub and, subsequently, to the second shaft. The spider’s ability to deform under load ensures efficient power transmission.
• Resilience: Elastomeric spiders are designed to withstand repeated cycles of deformation and load. Their resilience allows them to maintain their original shape and performance over time, contributing to the longevity of the coupling.
• Reduced Maintenance: The presence of the elastomeric spider reduces the need for constant alignment adjustments and maintenance, as it compensates for misalignments and dampens vibrations that can cause wear and tear.

Overall, the elastomeric spider’s ability to provide flexibility, misalignment compensation, vibration dampening, and efficient torque transmission makes it a crucial component in spider couplings, enhancing their performance and reliability in various industrial applications.

editor by CX 2024-03-14