JMI Single Diaphragm Coupling With Counterbore

JMI metal diaphragm coupling adopts the single-piece design, suitable for short distance transmission. Besides, the semi-coupling sleeve at one end has a counterbore, facilitating the fixing of the shaft end.

Model	Nominal Torque T_n N ·m	Instantaneous Maximum Torque T_max N ·m	Allowable Rotating Speed [n] r/min	Shaft Hole Diameter d,d₁ mm	Shaft Hole Length mm				D mm		t mm	Torsional Stiffness C N·m/rad	Quality m kg	Rotational Inertia I kg·m²
					Y 型	J 、J₁ 、Z 、Z₁ 型		L_推荐
					L	L	L₁	L_推荐
JMI1	25	80	6000	14	32	—	J₁ 型 27 Z₁ 型 20	35	90		8.8	1×10⁴	1	0.0007
				16,18,19	42		30
				20,22	52		38
JMI2	63	180	5000	18,19	42		30	45	100		9.5	1.4×10⁴	2.3	0.001
				20,22,24	52		38
				25	62		44
JMI3	100	315		20,22,24	52		38	50	120		11	1.87×10⁴	2.3	0.0024
				25,28	62		44
				30	82		60
JMI4	160	500	4500	24	52		38	55	130		12.5	3.12×10⁴	3.3	0.0024
				25,28	62		44
				30,32,35	82		60
JMI5	250	710	4000	28	62		44	60	150		14	4.32×10⁴	5.3	0.0083
				30,32,35,38	82		60
				40	112		84
JMI6	400	1120	3600	32,35,38	82	82	60	65		170	15.5	6.88×10⁴	8.7	0.0159
JMI6	400	1120	3600	40,42,45,48,50	112	112	84	65		170	15.5	6.88×10⁴	8.7	0.0159
JMI7	630	1800	3000	40,42,45,48	112	112	107	70		210	19	10.35×10⁴	14.3	0.0432
JMI7	630	1800	3000	50,55,56,60	142	—	107	70		210	19	10.35×10⁴	14.3	0.0432
JMI8	1000	2500	2800	45,48,50,55,56	112	112	84	80		240	22.5	16.11×10⁴	22	0.0879
JMI8	1000	2500	2800	60,63,65,70	142		107	80		240	22.5	16.11×10⁴	22	0.0879
JMI9	1600	4000	2500	55,56	112		84	85		260	24	26.17×10⁴	29	0.1415
				60,63,70,71,75	142		107
				80	172		132
JMI10	2500	6300	2000	63,65,70,71,75	142	142	107	90		280	17	7.88×10⁴	52	0.2974
JMI10	2500	6300	2000	80,85,90,95,75	172	—	132	90		280	17	7.88×10⁴	52	0.2974
JMI11	4000	9000	1800	75	142	142	107	95		300	19.5	10.49×10⁴	69	0.4782
				80,85,90,95	172	172	132
				100,110	212	—	167
JMI12	6300	12500	1600	90,95	172		132	120		340	23	14.07×10⁴	94	0.8067
JMI12	6300	12500	1600	100,110,120,125	212		167	120		340	23	14.07×10⁴	94	0.8067
JMI13	10000	18000	1400	100,110,120,125	212		167	135		380	28	19.2×10⁴	128	1.7053
JMI13	10000	18000	1400	130,140	252		202	135		380	28	19.2×10⁴	128	1.7053
JMI14	16000	28000	1200	120,125	212		167	150		420	31	30.0×10⁴	184	2.6832
				130,140,150	252		202
				160	302		242
JMI15	25000	40000	1120	140,150	252		202	180		480	37.5	47.46×10⁴	262	4.8015
JMI15	25000	40000	1120	160,170,180	302		242	180		480	37.5	47.46×10⁴	262	4.8015
JMI16	40000	56000	1000	160,170,180	302		242	200		560	41	48.09×10⁴	384	9.4118
JMI16	40000	56000	1000	190,200	352		282	200		560	41	48.09×10⁴	384	9.4118
JMI17	63000	80000	900	190,200,220	352		282	220		630	47	10.13×10⁴	561	18.3753
JMI17	63000	80000	900	140	410		330	220		630	47	10.13×10⁴	561	18.3753
JMI18	100000	125000	800	220	352		282	250		710	54.5	16.14×10⁴	723	28.2033
JMI18	100000	125000	800	240,250,260	410		330	250		710	54.5	16.14×10⁴	723	28.2033
JMI19	160000	200000	710	250,260	410		330	280		800	48	79.8×10⁴	1267	66.5813
JMI19	160000	200000	710	280,300,320	470		380	280		800	48	79.8×10⁴	1267	66.5813

JMI diaphragm couplings have the characteristics of strong ability to compensate for misalignment of two axes, high transmission efficiency, and adaptability to high temperatures and harsh environments.

Main characteristics

Strong compensation capability: Compared with gear couplings, JMI Membrane couplings have twice the angular displacement, smaller reaction force during radial displacement, greater flexibility, and allow for larger axial, radial, and angular displacements.
High transmission efficiency: up to 99.86%, especially suitable for medium and high-speed high-power transmission.
Strong adaptability: capable of working in high temperatures and harsh environments ranging from -80 to 300 degrees Celsius, and able to operate under conditions of impact and vibration.
Simple structure: light weight, small size, easy to assemble and disassemble, easy to maintain and replace.
Accurate transmission: able to accurately transmit speed, operate without slip, and can be used for the transmission of precision machinery.

JMI Metal diaphragm couplings are widely used in metallurgy, mining, petroleum, chemical, power, shipbuilding, lifting and transportation, textile, light industry, agricultural machinery, printing machinery, as well as mechanical equipment such as water pumps, fans, and machine tools to transmit power. Its superior performance and adaptability make it a key component in transmission systems in these fields.

When selecting JMI Flexible diaphragm couplings, it is necessary to choose the appropriate model and specifications based on the specific needs of the transmission system. At the same time, some manufacturers also provide customized services, which can be designed and manufactured according to customers' special needs. When selecting suppliers, it is recommended to prioritize manufacturers with rich production experience and good reputation to ensure product quality and after-sales service.

To ensure the long-term stable operation of JMI Steel Laminae couplings, regular maintenance and upkeep are necessary. This mainly includes checking the wear of the coupling, the looseness of fasteners, and the lubrication condition. If any abnormal situation is found, it should be dealt with and replaced in a timely manner to avoid causing greater damage to the transmission system.

JMI shim pack coupling is a mechanical transmission component with superior performance and strong adaptability, and has broad application prospects in multiple industries. In the process of selection, use, and maintenance, it is necessary to fully consider its characteristics and application requirements to ensure the stable operation of the transmission system.

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