JMIIJ Double Diaphragm Coupling With Intermediate Shaft

JMIIJ Diaphragm Coupling is designed with intermediate shaft, suitable for long distance transmission. Besides, the semi-coupling sleeve at both ends have no counterbore.

Model	Nominal Torque T_n N ·m	Instantaneous Maximum Torque T_max N·m	Maximum Speed n_max r/min	Shaft Hole Diameter d,d₁ mm	Shaft Hole Length mm			D mm	D₁ mm	D₂ mm	L₁ min mm	t mm	Quality m kg		Rotational Inertia I kg ·m²
					J₁ 型	Y 型	L_推荐						L₁ min Quality	Every 1m Increase In Mass
					L	L	L_推荐						L₁ min Quality	Every 1m Increase In Mass
JMIIJ1	63	100	9300	20,22,24	38	52	40	92	53	45	70	8 ± 0.2	2	4.1	0.002
				25,28	44	62
				30,32,35,38	60	82
JMIIJ2	100	200	8400	25,28	44	62	45	102	63	45	80	8 ± 0.2	2.9	4.1	0.003
				30,32,35,38	60	82
				40,42,45	84	112
JMIIJ3	250	400	6700	30,32,35,38	60	82	55	128	77	76	96	11 ± 0.3	5.7	8	0.009
JMIIJ3	250	400	6700	40,42,45,48,50,55	84	112	55	128	77	76	96	11 ± 0.3	5.7	8	0.009
JMIIJ4	500	800	5900	35,38	60	82	65	145	91	76	116	11 ± 0.3	8.5	8	0.017
				40,42,45,48,50,55,56	84	112
				60,63,65	107	142
JMIIJ5	800	1250	5100	40,42,45,48,50,55,56	84	112	75	168	105	102	136	14 ± 0.3	12.5	12	0.034
JMIIJ5	800	1250	5100	60,63,65,70,71,75	107	142	75	168	105	102	136	14 ± 0.3	12.5	12	0.034
JMIIJ6	1250	2000	4750	45,48,50,55,56	84	112	80	180	112	102	140	15 ± 0.4	16.5	12	0.053
				60,63,65,70,71,75	107	142
				80	132	172
JMIIJ7	2000	3150	4300	50,55,56	84	112	80	200	120	114	140	15 ± 0.4	21	19	0.082
				60,63,65,70,71,75	107	142
				80,85	132	172
JMIIJ8	2500	4000	4200	55,56	84	112	80	205	120	114	140	20 ± 0.4	23	19	0.092
				60,63,65,70,71,75	107	142
				80,85	132	172
JMIIJ9	3150	5000	4000	55,56	84	112	90	215	128	127	160	20 ± 0.4	27	21	0.117
				60,63,65,70,71,75	107	142
				80,85,90	132	172
JMIIJ10	4000	6300	3650	60,63,65,70,71,75	107	142	100	235	132	127	170	23 ± 0.5	36	21	0.191
JMIIJ10	4000	6300	3650	80,85,90,95	132	172	100	235	132	127	170	23 ± 0.5	36	21	0.191
JMIIJ11	5000	8000	3400	60,63,65,70,71,75	107	142	100	250	145	140	170	23 ± 0.5	42	26	0.252
				80,85,90,95	132	172
				100	167	212
JMIIJ12	6300	10000	3200	60,63,65,70,71,75	107	142	110	270	155	140	190	23 ± 0.5	50	26	0.349
				80,85,90,95	132	172
				100,110	167	212
JMIIJ13	8000	12500	2850	65,70,71,75	107	142	115	300	162	165	200	27 ± 0.6	66	47	0.56
				80,85,90,95	132	172
				100,110	167	212
JMIIJ14	10000	16000	2700	70,71,75	107	142	125	320	176	165	220	27 ± 0.6	78	47	0.75
				80,85,90,95	132	172
				100,110,120,125	167	212
JMIIJ15	12500	20000	2450	75	107	142	140	350	186	165	240	32 ± 0.7	110	51	1.26
				80,85,90,95	132	172
				100,110,120,125	167	212
				130	202	252
JMIIJ16	16000	25000	2300	80,85,90,95	132	172	145	370	203	219	250	32 ± 0.7	125	72	1.63
				100,110,120,125	167	212
				130,140	202	252
JMIIJ17	20000	31500	2150	90,95	132	172	165	400	230	219	290	32 ± 0.7	160	72	2.45
				100,110,120,125	167	212
				130,140,150	202	252
				160	242	302
JMIIJ18	25000	40000	1950	100,110,120,125	167	212	175	440	245	219	300	38 ± 0.9	220	72	3.99
				130,140,150	202	252
				160,170	242	302
JMIIJ19	31500	50000	1850	100,110,120,125	167	212	185	460	260	267	320	38 ± 0.9	245	89	4.98
				130,140,150	202	252
				160,170,180	242	302
JMIIJ20	35500	56000	1800	120,125	167	212	200	480	280	267	350	38 ± 0.9	275	89	6.28
				130,140,150	202	252
				160,170,180	242	302
				190,200	282	352
JMIIJ21	40000	63000	1700	120,125	167	212	210	500	295	267	370	38 ± 0.9	320	89	7.68
				130,140,150	202	252
				160,170,180	242	302
				190,200	282	352
JMIIJ22	50000	80000	1600	140,150	202	252	220	540	310	299	380	44 ± 1	400	110	11.6
				160,170,180	242	302
				190,200,220	282	352
JMIIJ23	63000	100000	1450	140,150	202	252	240	600	335	356	410	50 ± 1.2	560	145	19.8
				160,170,180	242	302
				190,200,220	282	352
				240	330	410
JMIIJ24	80000	125000	1400	160,170,180	242	302	255	620	350	356	440	50 ± 1.2	620	145	23.6
				190,200,220	282	352
				240,250	330	410
JMIIJ25	90000	140000	1300	180	242	302	275	660	385	356	480	50 ± 1.2	740	145	31.9
				190,200,220	282	352
				240,250,260	330	410
				280	380	470
JMIIJ26	112000	180000	1200	180	242	302	295	720	410	406	510	60 ± 1.4	970	190	50.4
				190,200,220	282	352
				240,250,260	330	410
				280,300	380	470
JMIIJ27	140000	200000	1150	220	282	352	300	740	420	406	520	60 ± 1.4	1050	190	57
				240,250,260	330	410
				280,300	380	470
JMIIJ28	160000	224000	1100	240,250,260	330	410	320	770	450	457	560	60 ± 1.4	1200	215	69.4
JMIIJ28	160000	224000	1100	280,300	380	470	320	770	450	457	560	60 ± 1.4	1200	215	69.4
JMIIJ29	180000	280000	1050	250,260	330	410	350	820	490	457	600	60 ± 1.4	1400	215	95.5
				280,300,320	380	470
				340	450	550
JMIIJ30	280000	450000	1000	280,300,320	380	470	350	875	480	559	620	50 ± 1.6	1400	235	96.5
JMIIJ30	280000	450000	1000	340,360	450	550	350	875	550	559	620	50 ± 1.6	1400	235	109.5
JMIIJ31	400000	630000	930	300,320	380	470	350	935	520	610	630	60 ± 1.0	1800	290	142
				340,360,380	450	550			560						152
				400	540	650			600						162
JMIIJ32	450000	710000	880	320	380	470	380	1030	480	622	690	60 ± 1.0	2250	330	194
				340,360,380	450	550			600						224
				400,420	540	650			640						240
JMIIJ33	560000	900000	820	360,380	450	550	400	1080	580	660	726	66 ± 2.2	2750	390	271
JMIIJ33	560000	900000	820	400,420,440,450,460	540	650	400	1080	700	660	726	66 ± 2.2	2750	390	325
JMIIJ34	1000000	1600000	740	400,420,440,450	540	650	460	1160	620	750	836	70 ± 2.3	3500	450	387
JMIIJ34	1000000	1600000	740	460,480,500	540	650	460	1160	750	750	836	70 ± 2.3	3500	450	465
JMIIJ35	1400000	2240000	680	440,450,460,480,500	540	650	520	1290	790	820	946	82 ± 2.6	5000	570	750
JMIIJ35	1400000	2240000	680	530,560	680	800	520	1290	840	820	946	82 ± 2.6	5000	570	810
JMIIJ36	2000000	3150000	620	480,500	540	650	570	1410	760	900	1040	92 ± 2.8	6600	710	1050
JMIIJ36	2000000	3150000	620	530,560,600	680	800	570	1410	920	900	1040	92 ± 2.8	6600	710	1290
JMIIJ37	2800000	4000000	570	450,460,480,500	540	640	610	1530	810	1000	1100	105 ± 3	8400	880	1630
JMIIJ37	2800000	4000000	570	530,560,600,630	680	800	610	1530	980	1000	1100	105 ± 3	8400	880	1950
JMIIJ38	4000000	6000000	520	560,600,630	680	800	670	1670	950	1100	1210	115 ± 3.4	11000	1050	2670
JMIIJ38	4000000	6000000	520	670,710	780	—	670	1670	1070	1100	1210	115 ± 3.4	11000	1050	3030
JMIIJ39	5000000	8000000	480	600,630	680	800	730	1830	970	1200	1320	125 ± 3.7	14500	1350	4060
JMIIJ39	5000000	8000000	480	670,710,750	780	—	730	1830	1170	1200	1320	125 ± 3.7	14500	1350	4800
JMIIJ40	6300000	10000000	430	670,710,750	780	—	800	2000	1140	1300	1450	130 ± 4	19000	1600	6600
JMIIJ40	6300000	10000000	430	800,850	880	—	800	2000	1290	1300	1450	130 ± 4	19000	1600	7500
JMIIJ41	8000000	12500000	400	750	780	—	800	2200	1260	1400	1600	140 ± 4.4	25000	1850	10400
JMIIJ41	8000000	12500000	400	800,850	880	—	800	2200	1420	1400	1600	140 ± 4.4	25000	1850	11900
JMIIJ42	10000000	16000000	350	800,850	880	—	960	2400	1370	1500	1760	140 ± 4.4	32000	2100	15200
JMIIJ42	10000000	16000000	350	900,950	980	—	960	2400	1550	1500	1760	140 ± 4.4	32000	2100	17400

JMIIJ diaphragm coupling is a high-performance transmission component widely used in various mechanical transmission systems. The JMIIJ diaphragm coupling adopts a design with an intermediate shaft, and both ends of the half shaft sleeve do not have countersunk holes. It is mainly composed of membrane group, intermediate shaft, two half coupling and other components. Diaphragm groups are usually composed of high-strength and highly elastic metal sheets stacked together, which have good torsional rigidity and shock absorption performance. The intermediate shaft plays a role in transmitting torque and connecting the half shaft sleeves at both ends. When the active half shaft sleeve rotates, it drives the driven half shaft sleeve to rotate synchronously through the intermediate shaft. The diaphragm group can absorb and compensate for the relative displacement between the two axes, such as axial displacement, radial displacement, and angular displacement, while transmitting torque. This design enables JMIIJ diaphragm couplings to have high transmission accuracy and stability.

Performance Advantages

High torque transmission capability: The JMIIJ Steel Laminae coupling adopts a high-strength diaphragm group design, which can withstand large torque transmission requirements.
Good shock absorption performance: The diaphragm assembly has good elasticity, which can effectively absorb and buffer vibrations and impacts during the transmission process, protecting the transmission system from damage.
Strong displacement compensation capability: JMIIJ diaphragm coupling can compensate for various relative displacements between two shafts, ensuring the stability and reliability of the transmission system.
Simple and compact structure: Adopting a design with an intermediate shaft, the overall structure of the coupling is more compact, making it easy to install and maintain.

JMIIJ Flexible diaphragm couplings are widely used in various mechanical transmission systems that require high precision, high stability, and high torque transmission capability, such as wind power generation, shipbuilding, petrochemicals, heavy machinery, and other fields. Especially in situations where compensation for large displacement and bearing large torque are required, JMIIJ diaphragm couplings exhibit more outstanding performance advantages.

When choosing JMIIJ Membrane couplings, it is necessary to determine the appropriate model and specifications based on the actual transmission system requirements. The factors that usually need to be considered include the magnitude of the transmitted torque, the relative displacement between the two shafts, and the working environment conditions. In addition, in order to meet the special needs of different customers, many manufacturers also provide customized services for JMIIJ diaphragm couplings, which can design and manufacture coupling products that meet the specific requirements of customers.

JMIIJ shim pack couplings play an important role in mechanical transmission systems due to their high torque transmission capacity, good shock absorption performance, strong displacement compensation capability, and simple and compact structure.

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