Product Description

LM plum CHINAMFG Elastic shaft 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 element 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 hardness of elastic parts.

Product Display
 

♦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 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 /* 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

elastic coupling

Maintenance Requirements for Optimal Performance of Elastic Couplings

Maintaining elastic couplings is essential to ensure their optimal performance and longevity. Following these maintenance guidelines can help prevent premature wear and failure:

  • Regular Inspection: Periodically inspect the coupling for signs of wear, such as cracks, deformities, or visible damage. This can help identify issues early and prevent further damage.
  • Lubrication: Some elastic couplings require lubrication to reduce friction and wear. Follow the manufacturer’s recommendations for lubrication intervals and use compatible lubricants.
  • Torque Check: Check the coupling’s torque values to ensure they are within the specified range. This helps maintain proper torque transmission and prevents overloading.
  • Alignment Check: Monitor the alignment of the connected shafts regularly. Misalignment can cause excessive stress on the coupling, leading to premature failure.
  • Vibration Analysis: Perform vibration analysis to identify any abnormal vibrations in the system. Excessive vibrations could indicate coupling or system issues that need attention.
  • Temperature and Environment: Ensure that the coupling operates within the recommended temperature and environmental limits. Extreme conditions can affect the coupling’s material properties and performance.
  • Coupling Wear: Keep track of the coupling’s wear over time. Depending on the application, the coupling might need replacement after a certain period of service.
  • Expert Inspection: If any unusual symptoms or problems arise, consider having the coupling inspected by a qualified technician or engineer to diagnose the issue accurately.

Adhering to these maintenance practices helps extend the service life of elastic couplings, ensures reliable performance, and minimizes unexpected downtime and costly repairs.

elastic coupling

Advancements in Elastic Coupling Technology

Recent advancements in elastic coupling technology have led to improved performance and capabilities. Some notable developments include:

  • Enhanced Materials: The use of advanced materials, such as high-performance elastomers and composites, has resulted in elastic couplings that offer higher strength, durability, and resistance to wear and fatigue.
  • Optimized Designs: Engineers are employing advanced computer simulations and modeling techniques to optimize the design of elastic couplings. This has led to designs that provide better torsional flexibility, reduced backlash, and improved performance in demanding conditions.
  • Vibration Dampening: Advancements in elastic coupling technology have focused on improving vibration dampening properties. This is particularly important in applications where minimizing vibration and shock is crucial for the machinery’s precision and longevity.
  • Customization: Modern elastic coupling manufacturers offer more options for customization, allowing engineers to select the best coupling configuration, size, and material for their specific application requirements.
  • Smart Couplings: Some elastic couplings now incorporate sensors and monitoring technology to provide real-time data on coupling performance, misalignment, and wear. This data can aid in predictive maintenance and enhance overall system reliability.

These advancements in elastic coupling technology continue to contribute to the efficiency, reliability, and overall performance of machinery systems in various industries.

elastic coupling

Benefits of Using Elastic Couplings in Industrial Machinery

Elastic couplings offer several advantages when used in industrial machinery:

  • Misalignment Compensation: Elastic couplings can accommodate small angular, axial, and radial misalignments between connected shafts. This ability to compensate for misalignment helps prolong the life of machinery components and reduces the risk of premature wear.
  • Vibration Damping: The elastic element in the coupling absorbs and dampens vibrations generated during operation. This feature improves the overall smoothness of machinery operation, reduces noise, and minimizes the transmission of vibrations to other parts of the system.
  • Shock Absorption: Elastic couplings absorb sudden shocks or impacts that may occur during operation. By reducing the impact load on the connected components, the coupling helps prevent damage and extends the lifespan of the machinery.
  • Reduced Maintenance: The flexibility and shock-absorbing properties of elastic couplings contribute to lower maintenance requirements. Machinery components experience less stress and wear, resulting in longer intervals between maintenance tasks.
  • Protection of Equipment: Elastic couplings act as a protective barrier between connected machinery. They isolate vibrations and shocks, preventing these forces from propagating throughout the system and potentially causing damage.
  • Improved Efficiency: By minimizing misalignment-related losses and reducing vibrations, elastic couplings contribute to improved machinery efficiency. This can lead to energy savings and better overall performance.

In summary, elastic couplings play a crucial role in enhancing the reliability, longevity, and efficiency of industrial machinery by addressing misalignment, dampening vibrations, absorbing shocks, and minimizing maintenance needs.

China manufacturer Lm Plum CHINAMFG Elastic Plum Coupling  China manufacturer Lm Plum CHINAMFG Elastic Plum Coupling
editor by CX 2024-02-28