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Company Name: Zhenjiang Orienthold Machinery Co., Ltd
Address: No.1, Minying Developing Zone, Zhenjiang City, Jiangsu, China\
Post: 212002
Tel: (+86) 511 888-2278
Fax: (+86) 511 888-2798
Email: orienthold@163.com             

Flexible Diaphragm Coupling

Flexible Diaphragm Coupling

Description
Flexible diaphragm coupling achieves flexible transmission by elastic deformation of high strength alloy steel with thin plate. It means that this elastic diaphragm coupling transmits torque from the outside diameter of plate to the inside diameter, and then from inside to outside diameter. The deforming of the plate from inside diameter to outside diameter accomplishes the misalignment.

Application
Flexible diaphragm coupling can be broadly used in metallurgy, steel rolling, mine, chemical industry, shipbuilding, pump, blower fan and other industries.

Advantages
1. Flexible diaphragm coupling has simple structure and one can inspect it directly without disassembling.
2. With simple structure, elastic diaphragm coupling is convenient for assembling and disassembling.
3. It has high torsion rigidity and zero gyration.

Features
1. According to driving torque and flexibility, flexible diaphragm can be divided into 4, 6 and 8 uniform forms of connecting rod.
2. Elastic diaphragm coupling has the advantages of large bearing capacity, convenient for assembling and disassembling, low cost and no need to lubricate and maintain.
3. Flexible diaphragm coupling adopts safe operation design with super torque. Peak torque is two times of rated torque.
4. Elastic diaphragm features simple structure, little vibration, no noise and easy manufacturing.
5. Working temperature of this machine is 20 to 250℃.

Marking Illustration
Type and marking: type of axle hole and keyway are in accordance with regulation of GB/T3852. Length of axle hole shall adopt L (recommended) value at first.
1. JM4 type diaphragm shaft coupling
Driving side: Y type axle hole; A type keyway. d=48mm, L=84mm
Driven end: Y type axle hole; A type keyway. d=40mm,L=84mm; (without counterbore length)
Shaft coupling: JM4 JB/T9147-1999

2. JM1J6 integral shaft coupling are connected with intermediate axle diaphragm shaft coupling
Driving side: Y type axle hole; A type keyway. d=65mm,L=142mm
Driven end: Y type axle hole; A type keyway. d=70mm,L=107mm
Shaft coupling: JM1J6 MT3α JB/T9147-1999

Parameters

Model Nominal Torque
Tn
/N.m
Momentary Maximum Torque Tn max
/N.m
Limited Rotational Speed
[n]
/(r/min)
Shaft Hole Diameter
d
(H7)
Shaft Hole Length D Torsional Rigidity
C
/N.m·rad
t Rotational Inertia
I
kg·m2
Weight
m
/kg
Y J, J1,
Z
L (recommended)
L L L1
JMI1 25 80 6000 14 32 - J1: 27, Z1: 20 35 90 1×104 8.8 0.0007 1
16,18,19 42 30
20,22 52 38
JMI2 63 180 5000 18,19 42 - 30 45 100 1.4×104 9.5 0.001 1.3
20,22,24 52 38
25 62 44
JMI3 100 315 5000 20,22,24 52 - 38 50 120 1.87×104 11 0.0024 2.3
25,28 62 44
30 82 60
JMI4 160 500 4500 24 52 - 38 55 130 3.12×104 12.5 0.0037 3.3
25,28 62 44
30,32,35 82 60
JMI5 250 710 4000 28 62 - 44 60 150 4.32×104 14 0.0083 5.3
30,32,35,38 82 60
40 112 84
JMI6 400 1120 3600 32,35,38 82 82 60 65 170 6.88×104 15.5 0.0159 8.7
40,42,45, 48,50 112 - 84
JMI7 630 1800 3000 40,42 112 112 84 70 210 10.35×104 19 0.0432 14.3
45,45,50, 55,56 -
60 142 107
JMI8 1000 2500 2800 45,48 112 112 84 80 240 16.11×104 22.5 0.0879 22
50,55,56 -
60,63,65,70 142 107
JMI9 1600 4000 2500 55,56 112 112 84 85 260 26.17×104 24 0.1415 29
60,63,65, 70,71,75 142 - 107
80 172 132
JMI10 2500 6300 2000 63,65,70, 71,75 142 142 107 90 280 7.88×104 17 0.2974 52
80,85,90,95 172 - 132
JMI11 4000 9000 1800 75 142 142 107 95 300 10.49×104 19.5 0.4782 69
80,85,90,95 172 - 132
100,110 212 167
JMI12 6300 12500 1600 90,95 172 - 132 120 340 14.07×104 23 0.8067 94
100,110, 120 ,125 212 167
JMI13 10000 18000 1400 100,110, 120,125 212 - 167 135 380 19.23×104 28 1.7053 128
130,140 252 202
JMI14 16000 28000 1200 120,125 212 - 167 150 420 30.01×104 31 2.6832 184
130,140, 150 252 202
160 302 242
JMI15 25000 40000 1120 140,150 252 - 202 180 480 47.46×104 37.5 4.8015 263
160,170, 180 302 242
JMI16 40000 56000 1000 160,170, 180 302 - 242 200 560 68.09×104 41 9.4118 384
190,200 352 282
JMI17 63000 80000 900 190,200, 220 352 - 282 220 630 101.3×104 47 18.3753 561
240 410 330
JMI18 100000 125000 800 220 352 - 282 250 710 161.4×104 54.5 28.2033 723
240,250, 260 410 330
JMI19 160000 200000 700 250,260 410 - 330 280 800 79.3×104 48 66.5813 1267
280,300, 320 470 380

Over the years, Orienthold is devoted to the development and production of flexible diaphragm coupling, wood chipper, swing chip screen and knife grinder. We emphasize scientific and technological innovation. Elastic diaphragm couplings are accepted by more and more customers. Orienthold develops quickly and accumulates abundant capital and technology strength. We provide a variety of shaft couplings for customers to test and inspect.

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