JMII Elastic Diaphragm Coupling belong to JM series diaphragm couplings. They are made up of several groups of diaphragms (stainless steel thin wrench), and bolts are interlaced with two halves of couplings. Each diaphragm is made up of several sheets. The diaphragm is divided into connecting rod type and whole shape with different shapes. Its elastic deformation is used to compensate the relative displacement of the two axes, and it is a high performance flexible coupling of metal elastic elements. No lubrication, compact structure, high strength, long service life, no rotation clearance, no influence on temperature and oil pollution, it has the characteristics of acid resistance, alkali resistance and corrosion resistance.
ouble Diaphragm Flexible Shaft Coupling For Shaft Encoder Step Moto
1. High torque rigidity, can accurately control the rotation of the shaft, can carry out high-precision control
2. Designed for servo and stepping motor
3. No gap between the shaft and sleeve connection, general for positive and negative rotation
4. Low inertia, suitable for high speed operation
5. The diaphragm is made of spring steel with excellent fatigue resistance
Model | Nominal torqueTn /N.m | maximum torque |
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| Shaft hole length | D | D1 | t | Torsional stiffness | weight | inertia Moment | |
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JMⅡ1 | 40 | 63 | 10700 | 14-28 | 27-62 | 35 | 80 | 39 | 8±0.2 | 0.37 | 0.9 | 0.0005 |
JMⅡ2 | 63 | 100 | 9300 | 20-38 | 38-82 | 40 | 92 | 53 |
| 0.45 | 1.4 | 0.0011 |
JMⅡ3 | 100 | 200 | 8400 | 25-45 | 44-112 | 45 | 102 | 63 |
| 0.56 | 2.1 | 0.002 |
JMⅡ4 | 250 | 400 | 6700 | 30-55 | 60-112 | 55 | 128 | 77 | 11±0.3 | 0.81 | 4.2 | 0.006 |
JMⅡ5 | 500 | 800 | 5900 | 35-65 | 60-142 | 65 | 145 | 91 |
| 1.2 | 6.4 | 0.012 |
JMⅡ6 | 800 | 1250 | 5100 | 40-75 | 84-142 | 75 | 168 | 105 | 14±0.3 | 1.42 | 9.6 | 0.024 |
JMⅡ7 | 1000 | 2000 | 4750 | 45-80 | 84-172 | 80 | 180 | 112 | 15±0.4 | 1.9 | 12.5 | 0.0365 |
JMⅡ8 | 1600 | 3150 | 4300 | 50-85 | 84-172 |
| 200 | 120 |
| 2.35 | 15.5 | 0.057 |
JMⅡ9 | 2500 | 4000 | 4200 | 55-85 | 84-172 |
| 205 |
| 20±0.4 | 2.7 | 16.5 | 0.065 |
JMⅡ10 | 3150 | 5000 | 4000 | 55-90 | 84-172 | 90 | 215 | 128 |
| 3.02 | 19.5 | 0.083 |
JMⅡ11 | 4000 | 6300 | 3650 | 60-95 | 107-172 | 100 | 235 | 132 | 23±0.5 | 3.46 | 25 | 0.131 |
JMⅡ12 | 5000 | 8000 | 3400 | 60-100 | 107-212 |
| 250 | 145 |
| 3.67 | 30 | 0.174 |
JMⅡ13 | 6300 | 10000 | 3200 | 63-110 | 107-212 | 110 | 270 | 155 |
| 5.2 | 36 | 0.239 |
JMⅡ14 | 8000 | 12500 | 2850 | 65-110 | 107-212 | 115 | 300 | 162 | 27±0.6 | 7.8 | 45 | 0.38 |
JMⅡ15 | 10000 | 16000 | 2700 | 70-125 | 107-212 | 125 | 320 | 176 |
| 8.43 | 55 | 0.5 |
JMⅡ16 | 12500 | 20000 | 2450 | 75-130 | 107-252 | 140 | 350 | 186 | 32±0.7 | 10.23 | 75 | 0.85 |
JMⅡ17 | 16000 | 25000 | 2300 | 80-140 | 132-252 | 145 | 370 | 203 |
| 10.97 | 85 | 1.1 |
JMⅡ18 | 20000 | 31500 | 2150 | 90-160 | 132-302 | 165 | 400 | 230 |
| 13.07 | 115 | 1.65 |
JMⅡ19 | 25000 | 40000 | 1950 | 100-170 | 167-302 | 175 | 440 | 245 | 38±0.9 | 14.26 | 150 | 2.69 |
JMⅡ20 | 31500 | 50000 | 1850 | 110-180 | 167-302 | 185 | 460 | 260 |
| 22.13 | 170 | 3.28 |
JMⅡ21 | 35500 | 56000 | 1800 | 120-200 | 167-282 | 200 | 480 | 280 |
| 23.7 | 200 | 4.28 |
JMⅡ22 | 40000 | 63000 | 1700 | 130-200 | 202-352 | 210 | 500 | 295 |
| 24.6 | 230 | 5.18 |
JMⅡ23 | 50000 | 80000 | 1600 | 140-220 | 202-352 | 220 | 540 | 310 | 44±1 | 29.71 | 275 | 7.7 |
JMⅡ24 | 63000 | 100000 | 1450 | 150-240 | 202-410 | 240 | 600 | 335 | 50±1.2 | 32.64 | 380 | 9.3 |
JMⅡ25 | 80000 | 125000 | 1400 | 160-250 | 242-352 | 255 | 620 | 350 | 50±1.2 | 37.69 | 410 | 15.3 |
JMⅡ26 | 90000 | 140000 | 1300 | 180-260 | 242-410 | 275 | 660 | 385 |
| 50.43 | 510 | 20.9 |
JMⅡ27 | 112000 | 180000 | 1200 | 190-280 | 282-470 | 295 | 720 | 410 | 60±1.4 | 71.51 | 620 | 32.4 |
JMⅡ28 | 140000 | 200000 | 1150 | 220-300 | 282-470 | 300 | 740 | 420 |
| 93.37 | 680 | 36 |
JMⅡ29 | 160000 | 224000 | 1100 | 240-320 | 330-470 | 320 | 770 | 450 |
| 114.53 | 780 | 43.9 |
JMⅡ30 | 180000 | 280000 | 1050 | 250-340 | 330-550 | 350 | 820 | 490 |
| 130.76 | 950 | 60.5 |
Nanpi county Jude transmission equipment manufacturing co., LTD. is a enterprises that specialized in research and production coupling. Also we can develop new products and bulk-production. With rich experience, professional R&D team and various equipment in coupling, it has superior conditions to satisfied your different requirements.
Company main products are: all kinds of couplings for machinery industry all over the word , such as radial elastic coupling, tyred coupling, universal coupling, drum gear coupling, plum flower form elastic coupling, rigid coupling oldham coupling, roller chain coupling, diaphragm coupling, coupling column elastic sleeve pin couplings, elastic dowel pin, elastic dowel pin coupling, pump shaft coupling, etc..
The concepts of our company is live on quality and develop on honor. The coupling has the advantage of high quality, low price, complete product models.Our company will be your best choice, and we look forward to cooperate with you.