LM/ML Flexible Plum Jaw Coupling
LM Plum-shaped Flexible Coupling is the basic form of this series of couplings.
| Model | Nominal Torque Tn N · m | Maximum Torque Tmax N · m | Allowable Rotating Speed [n] r/min | Shaft Hole Diameter d1、d2、dz mm | Shaft Hole Length | D1 mm | D2 mm | H mm | Rotational Inertia kg • m² | Quality kg | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Y型 | J、Z型 | |||||||||||
| L | L1 | L | ||||||||||
| mm | ||||||||||||
| LM50 | 28 | 50 | 15000 | 10,11 | 22 | — | — | 50 | 42 | 16 | 0.0002 | 1.00 |
| 12,14 | 27 | — | — | |||||||||
| 16,18,19 | 30 | — | — | |||||||||
| 20,22,24 | 38 | — | — | |||||||||
| LM70 | 112 | 200 | 11000 | 12,14 | 27 | — | — | 70 | 55 | 23 | 0.0011 | 2.50 |
| 16,18,19 | 30 | — | — | |||||||||
| 20,22,24 | 38 | — | — | |||||||||
| 25,28 | 44 | — | — | |||||||||
| 30,32,35,38 | 60 | — | — | |||||||||
| LM85 | 160 | 288 | 9000 | 16,18,19 | 30 | — | — | 85 | 60 | 24 | 0.0022 | 3.42 |
| 20,22,24 | 38 | — | — | |||||||||
| 25,28 | 44 | — | — | |||||||||
| 30,32,35,38 | 60 | — | — | |||||||||
| LM105 | 355 | 640 | 7250 | 18,19 | 30 | — | — | 105 | 65 | 27 | 0.0051 | 5.15 |
| 20,22,24 | 38 | — | — | |||||||||
| 25,28 | 44 | — | — | |||||||||
| 30,32,35,38 | 60 | — | — | |||||||||
| 40,42 | 84 | — | — | |||||||||
| LM125 | 450 | 810 | 6000 | 20,22,24 | 38 | 52 | 38 | 125 | 85 | 33 | 0.014 | 10.1 |
| 25,28 | 44 | 62 | 44 | |||||||||
| 30,32,35,38* | 60 | 82 | 60 | |||||||||
| 40,42,45,48,50,55 | 84 | — | — | |||||||||
| LM145 | 710 | 1280 | 5250 | 25,28 | 44 | 62 | 44 | 145 | 95 | 39 | 0.025 | 13.1 |
| 30,32,35,38 | 60 | 82 | 60 | |||||||||
| 40,42,45*,48*,50*,55* | 84 | 112 | 84 | |||||||||
| 60,63,65 | 107 | — | — | |||||||||
| LM170 | 1250 | 2250 | 4500 | 30,32,35,38 | 60 | 82 | 60 | 170 | 120 | 41 | 0.055 | 21.2 |
| 40,42,45,48,50,55 | 84 | 112 | 84 | |||||||||
| 60,63,65,70,75 | 107 | — | — | |||||||||
| 80,85 | 132 | — | — | |||||||||
| LM200 | 2000 | 3600 | 3750 | 35,38 | 60 | 82 | 60 | 心 | 135 | 48 | 0.119 | 33.0 |
| 40,42,45,48,50,55 | 84 | 112 | 84 | |||||||||
| 60,63,65,70*,75* | 107 | 142 | 107 | |||||||||
| 80,85,90,95 | 132 | — | — | |||||||||
| LM230 | 3150 | 5670 | 3250 | 40,42,45,48,50,55 | 84 | 112 | 84 | 230 | 150 | 50 | 0.217 | 45.5 |
| 60,63,65,70,75 | 107 | 142 | 107 | |||||||||
| 80,85,90,95 | 132 | — | — | |||||||||
| LM260 | 5000 | 9000 | 3000 | 45,48,50,55 | 84 | 112 | 84 | 260 | 180 | 60 | 0.458 | 75.2 |
| 60,63,65,70,75 | 107 | 142 | 107 | |||||||||
| 80,85,90*,95* | 132 | 172 | 132 | |||||||||
| 100,110,120,125 | 167 | — | — | |||||||||
| LM300 | 7100 | 12780 | 2500 | 60,63,65,70,75 | 107 | 142 | 107 | 300 | 200 | 67 | 0.804 | 99.2 |
| 80,85,90,95 | 132 | 172 | 132 | |||||||||
| 100,110,120,125 | 167 | — | — | |||||||||
| 130,140 | 202 | — | — | |||||||||
| LM360 | 12500 | 22500 | 2150 | 60,63,65,70,75 | 107 | 142 | 107 | 360 | 225 | 73 | 1.73 | 148.1 |
| 80,85,90,95 | 132 | 172 | 132 | |||||||||
| 100,110,120*,125* | 167 | 212 | 167 | |||||||||
| 130,140,150 | 202 | — | — | |||||||||
| LM400 | 14000 | 25200 | 1900 | 80,85,90,95 | 132 | 172 | 132 | 400 | 250 | 73 | 2.84 | 197.5 |
| 100,110,120,125 | 167 | 212 | 167 | |||||||||
| 130,140,150 | 202 | — | — | |||||||||
| 160 | 242 | — | — | |||||||||
LM plum blossom coupling is a common mechanical transmission component, and ML plum blossom coupling mainly consists of two half couplings with convex teeth and a plum blossom shaped elastic element located between them. The two halves of the coupling are fixed together by bolts or other connection methods, while the plum blossom shaped elastic element plays a role in transmitting torque and buffering vibration reduction. When there is a relative offset between the two axes, the elastic element will undergo corresponding elastic deformation, thereby playing an automatic compensation role.
Performance Characteristics
Stable and reliable work: LM Jaw coupling has good vibration reduction, buffering, and electrical insulation performance, which can maintain stable transmission effect under various complex working conditions.
Simple and compact structure: Its radial size is small, weight is light, and moment of inertia is small, making it particularly suitable for transmission in medium and high-speed situations.
Strong compensation capability: It has a large axial, radial, and angular compensation capability, and can adapt to various offsets and vibrations generated by the equipment during operation.
High load-bearing capacity: High strength polyurethane elastic components are wear-resistant and oil resistant, with a large load-bearing capacity and a long service life.
Easy maintenance: The coupling does not require lubrication, requires less maintenance work, and can operate continuously for a long time.
ML Jaw coupling is mainly suitable for working environments with frequent starting, forward and reverse rotation, medium high speed, moderate torque, and high reliability requirements. For example, in mechanical equipment such as metallurgy, mining, petroleum, chemical, lifting, transportation, light industry, textile, water pumps, fans, etc. Meanwhile, due to its excellent characteristics, it is particularly suitable for occasions that require high-precision transmission, such as machine tools, textile machinery, printing machinery, etc.
When choosing LM plum blossom coupling, it is necessary to comprehensively consider factors such as actual working conditions, transmission requirements, and equipment models. At the same time, it is also important to choose reputable manufacturers and brands to ensure the quality and performance of the products.
ML plum blossom coupling has been widely used and recognized in the field of mechanical transmission due to its unique structural characteristics and excellent performance features.
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