Magnetic Couplings

Magnetic couplings are shaft couplings that use a magnetic field instead of a physical, mechanical connection to transmit torque from one shaft to another. They are non-contact and utilize the attraction and repulsion of the magnetic poles to transmit rotational power. Magnetic couplers tolerate large misalignments and produce no noise, vibration, or thermal conduction.
Contact us for more information regarding our high-performance Magnetic Shaft Coupling options, or browse our catalog for more detailed product listings. Miki Pulley is your trusted choice for high-torque magnetic couplings.

CP Series

CO Series

MP Series

ML Series

Magnetic Coupling Options

Non-contact shaft couplings feature neodymium magnets and inner and outer drives that do not touch, offering a wear- and maintenance-free solution for linear and rotary shaft coupling applications. Miki Pulley offers magnetic shaft couplings in four styles to meet your requirements. 

Request a quote for non-contact couplings, or contact us to discuss which option is best for your application.

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Magnetic Shaft Coupling Advantages

The design and performance of permanent magnetic shaft couplings allow for zero wear and dust generation. The configurations are versatile for use in various engagement angles and installations. You can adjust the maximum transmittable torque by increasing or decreasing the distance between the two hubs. Additional features and benefits include:

• Non-contact design for wear-free, maintenance-free operation
• Quiet operation
• Ability to tolerate large misalignments
• Easy to install and disassemble
• Ideal for torque-limiting applications
• Performs in wet environments or where chemicals are present
• Torque ranging from 2.66 in-lbs. to 1610 in-lbs. (0.3 Nm to 182 Nm)
• Bore sizes range from 0.325” to 2.16” (8mm to 55mm)

Non-Contact Synchronous Couplings for a Softer Start & Stop Functionality

Non-contact synchronous couplings have a softer start and stop function than most standard couplings and can be used as a torque-limiting device since there are no mechanically engaged parts. They can be used in a linear or rotary configuration and are suitable for wet or harsh environments.
Magnetic Couplings Industries Served
Magnetic Shaft Couplings are commonly used within the following industries:

• Automated Mobile Robots
• Automated Guided Vehicles
• Transportation
• Material Handling
• Printing Machines
• Medical Equipment
• CNC Machines
• Printing & Packaging
• Pumps
• CNC Lathes
• Wind Turbines
• Robotic Arms

Magnetic Shaft Coupling Specifications & Dimensions

Magnetic couplings from Miki Pulley absorb vibration and impact and transmit torque ranging from 2.66 in-lbs. to 1610 in-lbs. (0.3 Nm to 182 Nm) depending on the coupling you select. Our synchronous shaft couplings are easy to adjust and designed to deliver high performance. They may also transmit torque through non-ferrous walls, enabling motor isolation. Review the chart below for specific information.

Set Model	Transmission torque [N・m]（at.20℃）			Reference diagram	A [mm]	B [mm]	C [mm]	D [mm]	E [mm]	F [mm]	G [mm]	K [mm]	M nominal	Set mass[kg]
	Air gap
	1mm	5mm	10mm
CP1010-02-SF *	0.03	-	-	image１	10	4	10	3	-	-	-	-	M2.5	0.01
CP2020-08-SF	0.326	0.032	0.003	image１	20	8	14	10	-	-	-	-	M4	0.06
CP2525-08-SF	0.741	0.113	0.014	image１	25	10	19	12	-	-	-	-	M4	0.12
CP3030-08-SF	1.397	0.287	0.045	image１	30	12	19	14	-	-	-	-	M4	0.17
CP3535-08-SF	2.259	0.579	0.114	image２	35	12	24	16	-	-	-	-	M4	0.29
CP4040-08-SF	3.580	1.067	0.249	image２	40	12	24	16	-	-	-	-	M4	0.41
CP5050-08-SF	6.577	2.502	0.766	image３	50	12	24	20	14	9	30	4	M4	0.50
CP6060-08-SF	10.124	4.565	1.680	image３	60	15	29	26	14	9	40	5	M5	0.70
CP6565-08-SF	12.862	6.059	2.392	image 3	65	15	29	26	14	9	40	5	M5
CP7070-08-SF	15.790	7.533	3.187	image３	70	15	29	26	14	9	40	5	M5	0.92
CP7575-08-SF	17.864	9.492	4.247	image 3	75	15	29	26	14	9	40	5	M5
CP8080-08-SF	19.960	10.797	4.849	image 3	80	15	29	26	14	9	40	5	M5
CP100100-12-SF	50.200	25.814	10.811	image 3	100	25	39	42	18	15	60	8	M6
CP120120-16-SF	95.791	48.271	19.006	image 3	120	35	41	54	18	17	70	10	M8
CP150150-18-SF	186.360	101.411	45.821	image 3	150	50	51	76	18	21	100	16	M12

Why Choose Miki Pulley for Your Magnetic Coupling Needs?

Miki Pulley is a global leader in the production of Magnetic Shaft Couplings. We also design, engineer, and manufacture Electromagnetic (EM) Brakes, Electromagnetic (EM) Clutches, and Speed Change and Control Devices. A strong commitment to product quality, workplace quality, and customer support drives everything we do. Reasons why customers choose Miki Pulley for their Magnetic Coupling needs:

• Our continuous product development and improvement meet demanding speed and precision requirements.
• Regular product testing and refinement ensure quality and reliability.
• Proactive quality control measures help us maintain high product standards.
• In-house design and engineering give customers the support they need from start to finish.
• We can offer custom solutions depending on the project size and scope.
• ISO 9001:2015 Certification

Contact Miki Pulley for Magnetic Shaft Couplings Today

Miki Pulley offers precision Magnetic Couplings, providing a failsafe design and long service life to meet your project needs. Custom configurations are also available. Contact us at 800-533-1731 to discuss your application or request a quote today.

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